1 /******************************************************************* 2 * This file is part of the Emulex Linux Device Driver for * 3 * Fibre Channel Host Bus Adapters. * 4 * Copyright (C) 2004-2008 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/interrupt.h> 25 26 #include <scsi/scsi.h> 27 #include <scsi/scsi_device.h> 28 #include <scsi/scsi_host.h> 29 #include <scsi/scsi_transport_fc.h> 30 31 #include "lpfc_hw.h" 32 #include "lpfc_sli.h" 33 #include "lpfc_disc.h" 34 #include "lpfc_scsi.h" 35 #include "lpfc.h" 36 #include "lpfc_logmsg.h" 37 #include "lpfc_crtn.h" 38 #include "lpfc_vport.h" 39 #include "lpfc_debugfs.h" 40 41 42 /* Called to verify a rcv'ed ADISC was intended for us. */ 43 static int 44 lpfc_check_adisc(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 45 struct lpfc_name *nn, struct lpfc_name *pn) 46 { 47 /* Compare the ADISC rsp WWNN / WWPN matches our internal node 48 * table entry for that node. 49 */ 50 if (memcmp(nn, &ndlp->nlp_nodename, sizeof (struct lpfc_name))) 51 return 0; 52 53 if (memcmp(pn, &ndlp->nlp_portname, sizeof (struct lpfc_name))) 54 return 0; 55 56 /* we match, return success */ 57 return 1; 58 } 59 60 int 61 lpfc_check_sparm(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 62 struct serv_parm * sp, uint32_t class) 63 { 64 volatile struct serv_parm *hsp = &vport->fc_sparam; 65 uint16_t hsp_value, ssp_value = 0; 66 67 /* 68 * The receive data field size and buffer-to-buffer receive data field 69 * size entries are 16 bits but are represented as two 8-bit fields in 70 * the driver data structure to account for rsvd bits and other control 71 * bits. Reconstruct and compare the fields as a 16-bit values before 72 * correcting the byte values. 73 */ 74 if (sp->cls1.classValid) { 75 hsp_value = (hsp->cls1.rcvDataSizeMsb << 8) | 76 hsp->cls1.rcvDataSizeLsb; 77 ssp_value = (sp->cls1.rcvDataSizeMsb << 8) | 78 sp->cls1.rcvDataSizeLsb; 79 if (!ssp_value) 80 goto bad_service_param; 81 if (ssp_value > hsp_value) { 82 sp->cls1.rcvDataSizeLsb = hsp->cls1.rcvDataSizeLsb; 83 sp->cls1.rcvDataSizeMsb = hsp->cls1.rcvDataSizeMsb; 84 } 85 } else if (class == CLASS1) { 86 goto bad_service_param; 87 } 88 89 if (sp->cls2.classValid) { 90 hsp_value = (hsp->cls2.rcvDataSizeMsb << 8) | 91 hsp->cls2.rcvDataSizeLsb; 92 ssp_value = (sp->cls2.rcvDataSizeMsb << 8) | 93 sp->cls2.rcvDataSizeLsb; 94 if (!ssp_value) 95 goto bad_service_param; 96 if (ssp_value > hsp_value) { 97 sp->cls2.rcvDataSizeLsb = hsp->cls2.rcvDataSizeLsb; 98 sp->cls2.rcvDataSizeMsb = hsp->cls2.rcvDataSizeMsb; 99 } 100 } else if (class == CLASS2) { 101 goto bad_service_param; 102 } 103 104 if (sp->cls3.classValid) { 105 hsp_value = (hsp->cls3.rcvDataSizeMsb << 8) | 106 hsp->cls3.rcvDataSizeLsb; 107 ssp_value = (sp->cls3.rcvDataSizeMsb << 8) | 108 sp->cls3.rcvDataSizeLsb; 109 if (!ssp_value) 110 goto bad_service_param; 111 if (ssp_value > hsp_value) { 112 sp->cls3.rcvDataSizeLsb = hsp->cls3.rcvDataSizeLsb; 113 sp->cls3.rcvDataSizeMsb = hsp->cls3.rcvDataSizeMsb; 114 } 115 } else if (class == CLASS3) { 116 goto bad_service_param; 117 } 118 119 /* 120 * Preserve the upper four bits of the MSB from the PLOGI response. 121 * These bits contain the Buffer-to-Buffer State Change Number 122 * from the target and need to be passed to the FW. 123 */ 124 hsp_value = (hsp->cmn.bbRcvSizeMsb << 8) | hsp->cmn.bbRcvSizeLsb; 125 ssp_value = (sp->cmn.bbRcvSizeMsb << 8) | sp->cmn.bbRcvSizeLsb; 126 if (ssp_value > hsp_value) { 127 sp->cmn.bbRcvSizeLsb = hsp->cmn.bbRcvSizeLsb; 128 sp->cmn.bbRcvSizeMsb = (sp->cmn.bbRcvSizeMsb & 0xF0) | 129 (hsp->cmn.bbRcvSizeMsb & 0x0F); 130 } 131 132 memcpy(&ndlp->nlp_nodename, &sp->nodeName, sizeof (struct lpfc_name)); 133 memcpy(&ndlp->nlp_portname, &sp->portName, sizeof (struct lpfc_name)); 134 return 1; 135 bad_service_param: 136 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY, 137 "0207 Device %x " 138 "(%02x:%02x:%02x:%02x:%02x:%02x:%02x:%02x) sent " 139 "invalid service parameters. Ignoring device.\n", 140 ndlp->nlp_DID, 141 sp->nodeName.u.wwn[0], sp->nodeName.u.wwn[1], 142 sp->nodeName.u.wwn[2], sp->nodeName.u.wwn[3], 143 sp->nodeName.u.wwn[4], sp->nodeName.u.wwn[5], 144 sp->nodeName.u.wwn[6], sp->nodeName.u.wwn[7]); 145 return 0; 146 } 147 148 static void * 149 lpfc_check_elscmpl_iocb(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb, 150 struct lpfc_iocbq *rspiocb) 151 { 152 struct lpfc_dmabuf *pcmd, *prsp; 153 uint32_t *lp; 154 void *ptr = NULL; 155 IOCB_t *irsp; 156 157 irsp = &rspiocb->iocb; 158 pcmd = (struct lpfc_dmabuf *) cmdiocb->context2; 159 160 /* For lpfc_els_abort, context2 could be zero'ed to delay 161 * freeing associated memory till after ABTS completes. 162 */ 163 if (pcmd) { 164 prsp = list_get_first(&pcmd->list, struct lpfc_dmabuf, 165 list); 166 if (prsp) { 167 lp = (uint32_t *) prsp->virt; 168 ptr = (void *)((uint8_t *)lp + sizeof(uint32_t)); 169 } 170 } else { 171 /* Force ulpStatus error since we are returning NULL ptr */ 172 if (!(irsp->ulpStatus)) { 173 irsp->ulpStatus = IOSTAT_LOCAL_REJECT; 174 irsp->un.ulpWord[4] = IOERR_SLI_ABORTED; 175 } 176 ptr = NULL; 177 } 178 return ptr; 179 } 180 181 182 /* 183 * Free resources / clean up outstanding I/Os 184 * associated with a LPFC_NODELIST entry. This 185 * routine effectively results in a "software abort". 186 */ 187 int 188 lpfc_els_abort(struct lpfc_hba *phba, struct lpfc_nodelist *ndlp) 189 { 190 LIST_HEAD(completions); 191 struct lpfc_sli *psli = &phba->sli; 192 struct lpfc_sli_ring *pring = &psli->ring[LPFC_ELS_RING]; 193 struct lpfc_iocbq *iocb, *next_iocb; 194 IOCB_t *cmd; 195 196 /* Abort outstanding I/O on NPort <nlp_DID> */ 197 lpfc_printf_vlog(ndlp->vport, KERN_INFO, LOG_DISCOVERY, 198 "0205 Abort outstanding I/O on NPort x%x " 199 "Data: x%x x%x x%x\n", 200 ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_state, 201 ndlp->nlp_rpi); 202 203 lpfc_fabric_abort_nport(ndlp); 204 205 /* First check the txq */ 206 spin_lock_irq(&phba->hbalock); 207 list_for_each_entry_safe(iocb, next_iocb, &pring->txq, list) { 208 /* Check to see if iocb matches the nport we are looking for */ 209 if (lpfc_check_sli_ndlp(phba, pring, iocb, ndlp)) { 210 /* It matches, so deque and call compl with anp error */ 211 list_move_tail(&iocb->list, &completions); 212 pring->txq_cnt--; 213 } 214 } 215 216 /* Next check the txcmplq */ 217 list_for_each_entry_safe(iocb, next_iocb, &pring->txcmplq, list) { 218 /* Check to see if iocb matches the nport we are looking for */ 219 if (lpfc_check_sli_ndlp(phba, pring, iocb, ndlp)) { 220 lpfc_sli_issue_abort_iotag(phba, pring, iocb); 221 } 222 } 223 spin_unlock_irq(&phba->hbalock); 224 225 while (!list_empty(&completions)) { 226 iocb = list_get_first(&completions, struct lpfc_iocbq, list); 227 cmd = &iocb->iocb; 228 list_del_init(&iocb->list); 229 230 if (!iocb->iocb_cmpl) 231 lpfc_sli_release_iocbq(phba, iocb); 232 else { 233 cmd->ulpStatus = IOSTAT_LOCAL_REJECT; 234 cmd->un.ulpWord[4] = IOERR_SLI_ABORTED; 235 (iocb->iocb_cmpl) (phba, iocb, iocb); 236 } 237 } 238 239 /* If we are delaying issuing an ELS command, cancel it */ 240 if (ndlp->nlp_flag & NLP_DELAY_TMO) 241 lpfc_cancel_retry_delay_tmo(phba->pport, ndlp); 242 return 0; 243 } 244 245 static int 246 lpfc_rcv_plogi(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 247 struct lpfc_iocbq *cmdiocb) 248 { 249 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 250 struct lpfc_hba *phba = vport->phba; 251 struct lpfc_dmabuf *pcmd; 252 struct lpfc_work_evt *evtp; 253 uint32_t *lp; 254 IOCB_t *icmd; 255 struct serv_parm *sp; 256 LPFC_MBOXQ_t *mbox; 257 struct ls_rjt stat; 258 int rc; 259 260 memset(&stat, 0, sizeof (struct ls_rjt)); 261 if (vport->port_state <= LPFC_FLOGI) { 262 /* Before responding to PLOGI, check for pt2pt mode. 263 * If we are pt2pt, with an outstanding FLOGI, abort 264 * the FLOGI and resend it first. 265 */ 266 if (vport->fc_flag & FC_PT2PT) { 267 lpfc_els_abort_flogi(phba); 268 if (!(vport->fc_flag & FC_PT2PT_PLOGI)) { 269 /* If the other side is supposed to initiate 270 * the PLOGI anyway, just ACC it now and 271 * move on with discovery. 272 */ 273 phba->fc_edtov = FF_DEF_EDTOV; 274 phba->fc_ratov = FF_DEF_RATOV; 275 /* Start discovery - this should just do 276 CLEAR_LA */ 277 lpfc_disc_start(vport); 278 } else 279 lpfc_initial_flogi(vport); 280 } else { 281 stat.un.b.lsRjtRsnCode = LSRJT_LOGICAL_BSY; 282 stat.un.b.lsRjtRsnCodeExp = LSEXP_NOTHING_MORE; 283 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, 284 ndlp, NULL); 285 return 0; 286 } 287 } 288 pcmd = (struct lpfc_dmabuf *) cmdiocb->context2; 289 lp = (uint32_t *) pcmd->virt; 290 sp = (struct serv_parm *) ((uint8_t *) lp + sizeof (uint32_t)); 291 if (wwn_to_u64(sp->portName.u.wwn) == 0) { 292 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS, 293 "0140 PLOGI Reject: invalid nname\n"); 294 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC; 295 stat.un.b.lsRjtRsnCodeExp = LSEXP_INVALID_PNAME; 296 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, 297 NULL); 298 return 0; 299 } 300 if (wwn_to_u64(sp->nodeName.u.wwn) == 0) { 301 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS, 302 "0141 PLOGI Reject: invalid pname\n"); 303 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC; 304 stat.un.b.lsRjtRsnCodeExp = LSEXP_INVALID_NNAME; 305 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, 306 NULL); 307 return 0; 308 } 309 if ((lpfc_check_sparm(vport, ndlp, sp, CLASS3) == 0)) { 310 /* Reject this request because invalid parameters */ 311 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC; 312 stat.un.b.lsRjtRsnCodeExp = LSEXP_SPARM_OPTIONS; 313 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, 314 NULL); 315 return 0; 316 } 317 icmd = &cmdiocb->iocb; 318 319 /* PLOGI chkparm OK */ 320 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, 321 "0114 PLOGI chkparm OK Data: x%x x%x x%x x%x\n", 322 ndlp->nlp_DID, ndlp->nlp_state, ndlp->nlp_flag, 323 ndlp->nlp_rpi); 324 325 if (vport->cfg_fcp_class == 2 && sp->cls2.classValid) 326 ndlp->nlp_fcp_info |= CLASS2; 327 else 328 ndlp->nlp_fcp_info |= CLASS3; 329 330 ndlp->nlp_class_sup = 0; 331 if (sp->cls1.classValid) 332 ndlp->nlp_class_sup |= FC_COS_CLASS1; 333 if (sp->cls2.classValid) 334 ndlp->nlp_class_sup |= FC_COS_CLASS2; 335 if (sp->cls3.classValid) 336 ndlp->nlp_class_sup |= FC_COS_CLASS3; 337 if (sp->cls4.classValid) 338 ndlp->nlp_class_sup |= FC_COS_CLASS4; 339 ndlp->nlp_maxframe = 340 ((sp->cmn.bbRcvSizeMsb & 0x0F) << 8) | sp->cmn.bbRcvSizeLsb; 341 342 /* no need to reg_login if we are already in one of these states */ 343 switch (ndlp->nlp_state) { 344 case NLP_STE_NPR_NODE: 345 if (!(ndlp->nlp_flag & NLP_NPR_ADISC)) 346 break; 347 case NLP_STE_REG_LOGIN_ISSUE: 348 case NLP_STE_PRLI_ISSUE: 349 case NLP_STE_UNMAPPED_NODE: 350 case NLP_STE_MAPPED_NODE: 351 lpfc_els_rsp_acc(vport, ELS_CMD_PLOGI, cmdiocb, ndlp, NULL); 352 return 1; 353 } 354 355 if ((vport->fc_flag & FC_PT2PT) && 356 !(vport->fc_flag & FC_PT2PT_PLOGI)) { 357 /* rcv'ed PLOGI decides what our NPortId will be */ 358 vport->fc_myDID = icmd->un.rcvels.parmRo; 359 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 360 if (mbox == NULL) 361 goto out; 362 lpfc_config_link(phba, mbox); 363 mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl; 364 mbox->vport = vport; 365 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT); 366 if (rc == MBX_NOT_FINISHED) { 367 mempool_free(mbox, phba->mbox_mem_pool); 368 goto out; 369 } 370 371 lpfc_can_disctmo(vport); 372 } 373 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 374 if (!mbox) 375 goto out; 376 377 rc = lpfc_reg_login(phba, vport->vpi, icmd->un.rcvels.remoteID, 378 (uint8_t *) sp, mbox, 0); 379 if (rc) { 380 mempool_free(mbox, phba->mbox_mem_pool); 381 goto out; 382 } 383 384 /* ACC PLOGI rsp command needs to execute first, 385 * queue this mbox command to be processed later. 386 */ 387 mbox->mbox_cmpl = lpfc_mbx_cmpl_reg_login; 388 /* 389 * mbox->context2 = lpfc_nlp_get(ndlp) deferred until mailbox 390 * command issued in lpfc_cmpl_els_acc(). 391 */ 392 mbox->vport = vport; 393 spin_lock_irq(shost->host_lock); 394 ndlp->nlp_flag |= (NLP_ACC_REGLOGIN | NLP_RCV_PLOGI); 395 spin_unlock_irq(shost->host_lock); 396 397 /* 398 * If there is an outstanding PLOGI issued, abort it before 399 * sending ACC rsp for received PLOGI. If pending plogi 400 * is not canceled here, the plogi will be rejected by 401 * remote port and will be retried. On a configuration with 402 * single discovery thread, this will cause a huge delay in 403 * discovery. Also this will cause multiple state machines 404 * running in parallel for this node. 405 */ 406 if (ndlp->nlp_state == NLP_STE_PLOGI_ISSUE) { 407 /* software abort outstanding PLOGI */ 408 lpfc_els_abort(phba, ndlp); 409 } 410 411 if ((vport->port_type == LPFC_NPIV_PORT && 412 vport->cfg_restrict_login)) { 413 414 /* In order to preserve RPIs, we want to cleanup 415 * the default RPI the firmware created to rcv 416 * this ELS request. The only way to do this is 417 * to register, then unregister the RPI. 418 */ 419 spin_lock_irq(shost->host_lock); 420 ndlp->nlp_flag |= NLP_RM_DFLT_RPI; 421 spin_unlock_irq(shost->host_lock); 422 stat.un.b.lsRjtRsnCode = LSRJT_INVALID_CMD; 423 stat.un.b.lsRjtRsnCodeExp = LSEXP_NOTHING_MORE; 424 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, 425 ndlp, mbox); 426 return 1; 427 } 428 429 /* If the remote NPort logs into us, before we can initiate 430 * discovery to them, cleanup the NPort from discovery accordingly. 431 */ 432 if (ndlp->nlp_state == NLP_STE_NPR_NODE) { 433 spin_lock_irq(shost->host_lock); 434 ndlp->nlp_flag &= ~NLP_DELAY_TMO; 435 spin_unlock_irq(shost->host_lock); 436 del_timer_sync(&ndlp->nlp_delayfunc); 437 ndlp->nlp_last_elscmd = 0; 438 439 if (!list_empty(&ndlp->els_retry_evt.evt_listp)) { 440 list_del_init(&ndlp->els_retry_evt.evt_listp); 441 /* Decrement ndlp reference count held for the 442 * delayed retry 443 */ 444 evtp = &ndlp->els_retry_evt; 445 lpfc_nlp_put((struct lpfc_nodelist *)evtp->evt_arg1); 446 } 447 448 if (ndlp->nlp_flag & NLP_NPR_2B_DISC) { 449 spin_lock_irq(shost->host_lock); 450 ndlp->nlp_flag &= ~NLP_NPR_2B_DISC; 451 spin_unlock_irq(shost->host_lock); 452 453 if ((ndlp->nlp_flag & NLP_ADISC_SND) && 454 (vport->num_disc_nodes)) { 455 /* Check to see if there are more 456 * ADISCs to be sent 457 */ 458 lpfc_more_adisc(vport); 459 460 if ((vport->num_disc_nodes == 0) && 461 (vport->fc_npr_cnt)) 462 lpfc_els_disc_plogi(vport); 463 464 if (vport->num_disc_nodes == 0) { 465 spin_lock_irq(shost->host_lock); 466 vport->fc_flag &= ~FC_NDISC_ACTIVE; 467 spin_unlock_irq(shost->host_lock); 468 lpfc_can_disctmo(vport); 469 lpfc_end_rscn(vport); 470 } 471 } 472 } 473 } else if ((ndlp->nlp_state == NLP_STE_PLOGI_ISSUE) && 474 (ndlp->nlp_flag & NLP_NPR_2B_DISC) && 475 (vport->num_disc_nodes)) { 476 spin_lock_irq(shost->host_lock); 477 ndlp->nlp_flag &= ~NLP_NPR_2B_DISC; 478 spin_unlock_irq(shost->host_lock); 479 /* Check to see if there are more 480 * PLOGIs to be sent 481 */ 482 lpfc_more_plogi(vport); 483 if (vport->num_disc_nodes == 0) { 484 spin_lock_irq(shost->host_lock); 485 vport->fc_flag &= ~FC_NDISC_ACTIVE; 486 spin_unlock_irq(shost->host_lock); 487 lpfc_can_disctmo(vport); 488 lpfc_end_rscn(vport); 489 } 490 } 491 492 lpfc_els_rsp_acc(vport, ELS_CMD_PLOGI, cmdiocb, ndlp, mbox); 493 return 1; 494 495 out: 496 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC; 497 stat.un.b.lsRjtRsnCodeExp = LSEXP_OUT_OF_RESOURCE; 498 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, NULL); 499 return 0; 500 } 501 502 static int 503 lpfc_rcv_padisc(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 504 struct lpfc_iocbq *cmdiocb) 505 { 506 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 507 struct lpfc_dmabuf *pcmd; 508 struct serv_parm *sp; 509 struct lpfc_name *pnn, *ppn; 510 struct ls_rjt stat; 511 ADISC *ap; 512 IOCB_t *icmd; 513 uint32_t *lp; 514 uint32_t cmd; 515 516 pcmd = (struct lpfc_dmabuf *) cmdiocb->context2; 517 lp = (uint32_t *) pcmd->virt; 518 519 cmd = *lp++; 520 if (cmd == ELS_CMD_ADISC) { 521 ap = (ADISC *) lp; 522 pnn = (struct lpfc_name *) & ap->nodeName; 523 ppn = (struct lpfc_name *) & ap->portName; 524 } else { 525 sp = (struct serv_parm *) lp; 526 pnn = (struct lpfc_name *) & sp->nodeName; 527 ppn = (struct lpfc_name *) & sp->portName; 528 } 529 530 icmd = &cmdiocb->iocb; 531 if (icmd->ulpStatus == 0 && lpfc_check_adisc(vport, ndlp, pnn, ppn)) { 532 if (cmd == ELS_CMD_ADISC) { 533 lpfc_els_rsp_adisc_acc(vport, cmdiocb, ndlp); 534 } else { 535 lpfc_els_rsp_acc(vport, ELS_CMD_PLOGI, cmdiocb, ndlp, 536 NULL); 537 } 538 return 1; 539 } 540 /* Reject this request because invalid parameters */ 541 stat.un.b.lsRjtRsvd0 = 0; 542 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC; 543 stat.un.b.lsRjtRsnCodeExp = LSEXP_SPARM_OPTIONS; 544 stat.un.b.vendorUnique = 0; 545 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, NULL); 546 547 /* 1 sec timeout */ 548 mod_timer(&ndlp->nlp_delayfunc, jiffies + HZ); 549 550 spin_lock_irq(shost->host_lock); 551 ndlp->nlp_flag |= NLP_DELAY_TMO; 552 spin_unlock_irq(shost->host_lock); 553 ndlp->nlp_last_elscmd = ELS_CMD_PLOGI; 554 ndlp->nlp_prev_state = ndlp->nlp_state; 555 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 556 return 0; 557 } 558 559 static int 560 lpfc_rcv_logo(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 561 struct lpfc_iocbq *cmdiocb, uint32_t els_cmd) 562 { 563 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 564 565 /* Put ndlp in NPR state with 1 sec timeout for plogi, ACC logo */ 566 /* Only call LOGO ACC for first LOGO, this avoids sending unnecessary 567 * PLOGIs during LOGO storms from a device. 568 */ 569 spin_lock_irq(shost->host_lock); 570 ndlp->nlp_flag |= NLP_LOGO_ACC; 571 spin_unlock_irq(shost->host_lock); 572 if (els_cmd == ELS_CMD_PRLO) 573 lpfc_els_rsp_acc(vport, ELS_CMD_PRLO, cmdiocb, ndlp, NULL); 574 else 575 lpfc_els_rsp_acc(vport, ELS_CMD_ACC, cmdiocb, ndlp, NULL); 576 577 if (!(ndlp->nlp_type & NLP_FABRIC) || 578 (ndlp->nlp_state == NLP_STE_ADISC_ISSUE)) { 579 /* Only try to re-login if this is NOT a Fabric Node */ 580 mod_timer(&ndlp->nlp_delayfunc, jiffies + HZ * 1); 581 spin_lock_irq(shost->host_lock); 582 ndlp->nlp_flag |= NLP_DELAY_TMO; 583 spin_unlock_irq(shost->host_lock); 584 585 ndlp->nlp_last_elscmd = ELS_CMD_PLOGI; 586 } 587 ndlp->nlp_prev_state = ndlp->nlp_state; 588 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 589 590 spin_lock_irq(shost->host_lock); 591 ndlp->nlp_flag &= ~NLP_NPR_ADISC; 592 spin_unlock_irq(shost->host_lock); 593 /* The driver has to wait until the ACC completes before it continues 594 * processing the LOGO. The action will resume in 595 * lpfc_cmpl_els_logo_acc routine. Since part of processing includes an 596 * unreg_login, the driver waits so the ACC does not get aborted. 597 */ 598 return 0; 599 } 600 601 static void 602 lpfc_rcv_prli(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 603 struct lpfc_iocbq *cmdiocb) 604 { 605 struct lpfc_dmabuf *pcmd; 606 uint32_t *lp; 607 PRLI *npr; 608 struct fc_rport *rport = ndlp->rport; 609 u32 roles; 610 611 pcmd = (struct lpfc_dmabuf *) cmdiocb->context2; 612 lp = (uint32_t *) pcmd->virt; 613 npr = (PRLI *) ((uint8_t *) lp + sizeof (uint32_t)); 614 615 ndlp->nlp_type &= ~(NLP_FCP_TARGET | NLP_FCP_INITIATOR); 616 ndlp->nlp_fcp_info &= ~NLP_FCP_2_DEVICE; 617 if (npr->prliType == PRLI_FCP_TYPE) { 618 if (npr->initiatorFunc) 619 ndlp->nlp_type |= NLP_FCP_INITIATOR; 620 if (npr->targetFunc) 621 ndlp->nlp_type |= NLP_FCP_TARGET; 622 if (npr->Retry) 623 ndlp->nlp_fcp_info |= NLP_FCP_2_DEVICE; 624 } 625 if (rport) { 626 /* We need to update the rport role values */ 627 roles = FC_RPORT_ROLE_UNKNOWN; 628 if (ndlp->nlp_type & NLP_FCP_INITIATOR) 629 roles |= FC_RPORT_ROLE_FCP_INITIATOR; 630 if (ndlp->nlp_type & NLP_FCP_TARGET) 631 roles |= FC_RPORT_ROLE_FCP_TARGET; 632 633 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_RPORT, 634 "rport rolechg: role:x%x did:x%x flg:x%x", 635 roles, ndlp->nlp_DID, ndlp->nlp_flag); 636 637 fc_remote_port_rolechg(rport, roles); 638 } 639 } 640 641 static uint32_t 642 lpfc_disc_set_adisc(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp) 643 { 644 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 645 646 if (!ndlp->nlp_rpi) { 647 ndlp->nlp_flag &= ~NLP_NPR_ADISC; 648 return 0; 649 } 650 651 if (!(vport->fc_flag & FC_PT2PT)) { 652 /* Check config parameter use-adisc or FCP-2 */ 653 if ((vport->cfg_use_adisc && (vport->fc_flag & FC_RSCN_MODE)) || 654 ndlp->nlp_fcp_info & NLP_FCP_2_DEVICE) { 655 spin_lock_irq(shost->host_lock); 656 ndlp->nlp_flag |= NLP_NPR_ADISC; 657 spin_unlock_irq(shost->host_lock); 658 return 1; 659 } 660 } 661 ndlp->nlp_flag &= ~NLP_NPR_ADISC; 662 lpfc_unreg_rpi(vport, ndlp); 663 return 0; 664 } 665 666 static uint32_t 667 lpfc_disc_illegal(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 668 void *arg, uint32_t evt) 669 { 670 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY, 671 "0271 Illegal State Transition: node x%x " 672 "event x%x, state x%x Data: x%x x%x\n", 673 ndlp->nlp_DID, evt, ndlp->nlp_state, ndlp->nlp_rpi, 674 ndlp->nlp_flag); 675 return ndlp->nlp_state; 676 } 677 678 static uint32_t 679 lpfc_cmpl_plogi_illegal(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 680 void *arg, uint32_t evt) 681 { 682 /* This transition is only legal if we previously 683 * rcv'ed a PLOGI. Since we don't want 2 discovery threads 684 * working on the same NPortID, do nothing for this thread 685 * to stop it. 686 */ 687 if (!(ndlp->nlp_flag & NLP_RCV_PLOGI)) { 688 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY, 689 "0272 Illegal State Transition: node x%x " 690 "event x%x, state x%x Data: x%x x%x\n", 691 ndlp->nlp_DID, evt, ndlp->nlp_state, ndlp->nlp_rpi, 692 ndlp->nlp_flag); 693 } 694 return ndlp->nlp_state; 695 } 696 697 /* Start of Discovery State Machine routines */ 698 699 static uint32_t 700 lpfc_rcv_plogi_unused_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 701 void *arg, uint32_t evt) 702 { 703 struct lpfc_iocbq *cmdiocb; 704 705 cmdiocb = (struct lpfc_iocbq *) arg; 706 707 if (lpfc_rcv_plogi(vport, ndlp, cmdiocb)) { 708 return ndlp->nlp_state; 709 } 710 return NLP_STE_FREED_NODE; 711 } 712 713 static uint32_t 714 lpfc_rcv_els_unused_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 715 void *arg, uint32_t evt) 716 { 717 lpfc_issue_els_logo(vport, ndlp, 0); 718 return ndlp->nlp_state; 719 } 720 721 static uint32_t 722 lpfc_rcv_logo_unused_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 723 void *arg, uint32_t evt) 724 { 725 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 726 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 727 728 spin_lock_irq(shost->host_lock); 729 ndlp->nlp_flag |= NLP_LOGO_ACC; 730 spin_unlock_irq(shost->host_lock); 731 lpfc_els_rsp_acc(vport, ELS_CMD_ACC, cmdiocb, ndlp, NULL); 732 733 return ndlp->nlp_state; 734 } 735 736 static uint32_t 737 lpfc_cmpl_logo_unused_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 738 void *arg, uint32_t evt) 739 { 740 return NLP_STE_FREED_NODE; 741 } 742 743 static uint32_t 744 lpfc_device_rm_unused_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 745 void *arg, uint32_t evt) 746 { 747 return NLP_STE_FREED_NODE; 748 } 749 750 static uint32_t 751 lpfc_rcv_plogi_plogi_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 752 void *arg, uint32_t evt) 753 { 754 struct lpfc_hba *phba = vport->phba; 755 struct lpfc_iocbq *cmdiocb = arg; 756 struct lpfc_dmabuf *pcmd = (struct lpfc_dmabuf *) cmdiocb->context2; 757 uint32_t *lp = (uint32_t *) pcmd->virt; 758 struct serv_parm *sp = (struct serv_parm *) (lp + 1); 759 struct ls_rjt stat; 760 int port_cmp; 761 762 memset(&stat, 0, sizeof (struct ls_rjt)); 763 764 /* For a PLOGI, we only accept if our portname is less 765 * than the remote portname. 766 */ 767 phba->fc_stat.elsLogiCol++; 768 port_cmp = memcmp(&vport->fc_portname, &sp->portName, 769 sizeof(struct lpfc_name)); 770 771 if (port_cmp >= 0) { 772 /* Reject this request because the remote node will accept 773 ours */ 774 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC; 775 stat.un.b.lsRjtRsnCodeExp = LSEXP_CMD_IN_PROGRESS; 776 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, 777 NULL); 778 } else { 779 lpfc_rcv_plogi(vport, ndlp, cmdiocb); 780 } /* If our portname was less */ 781 782 return ndlp->nlp_state; 783 } 784 785 static uint32_t 786 lpfc_rcv_prli_plogi_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 787 void *arg, uint32_t evt) 788 { 789 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 790 struct ls_rjt stat; 791 792 memset(&stat, 0, sizeof (struct ls_rjt)); 793 stat.un.b.lsRjtRsnCode = LSRJT_LOGICAL_BSY; 794 stat.un.b.lsRjtRsnCodeExp = LSEXP_NOTHING_MORE; 795 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, NULL); 796 return ndlp->nlp_state; 797 } 798 799 static uint32_t 800 lpfc_rcv_logo_plogi_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 801 void *arg, uint32_t evt) 802 { 803 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 804 805 /* software abort outstanding PLOGI */ 806 lpfc_els_abort(vport->phba, ndlp); 807 808 lpfc_rcv_logo(vport, ndlp, cmdiocb, ELS_CMD_LOGO); 809 return ndlp->nlp_state; 810 } 811 812 static uint32_t 813 lpfc_rcv_els_plogi_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 814 void *arg, uint32_t evt) 815 { 816 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 817 struct lpfc_hba *phba = vport->phba; 818 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 819 820 /* software abort outstanding PLOGI */ 821 lpfc_els_abort(phba, ndlp); 822 823 if (evt == NLP_EVT_RCV_LOGO) { 824 lpfc_els_rsp_acc(vport, ELS_CMD_ACC, cmdiocb, ndlp, NULL); 825 } else { 826 lpfc_issue_els_logo(vport, ndlp, 0); 827 } 828 829 /* Put ndlp in npr state set plogi timer for 1 sec */ 830 mod_timer(&ndlp->nlp_delayfunc, jiffies + HZ * 1); 831 spin_lock_irq(shost->host_lock); 832 ndlp->nlp_flag |= NLP_DELAY_TMO; 833 spin_unlock_irq(shost->host_lock); 834 ndlp->nlp_last_elscmd = ELS_CMD_PLOGI; 835 ndlp->nlp_prev_state = NLP_STE_PLOGI_ISSUE; 836 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 837 838 return ndlp->nlp_state; 839 } 840 841 static uint32_t 842 lpfc_cmpl_plogi_plogi_issue(struct lpfc_vport *vport, 843 struct lpfc_nodelist *ndlp, 844 void *arg, 845 uint32_t evt) 846 { 847 struct lpfc_hba *phba = vport->phba; 848 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 849 struct lpfc_iocbq *cmdiocb, *rspiocb; 850 struct lpfc_dmabuf *pcmd, *prsp, *mp; 851 uint32_t *lp; 852 IOCB_t *irsp; 853 struct serv_parm *sp; 854 LPFC_MBOXQ_t *mbox; 855 856 cmdiocb = (struct lpfc_iocbq *) arg; 857 rspiocb = cmdiocb->context_un.rsp_iocb; 858 859 if (ndlp->nlp_flag & NLP_ACC_REGLOGIN) { 860 /* Recovery from PLOGI collision logic */ 861 return ndlp->nlp_state; 862 } 863 864 irsp = &rspiocb->iocb; 865 866 if (irsp->ulpStatus) 867 goto out; 868 869 pcmd = (struct lpfc_dmabuf *) cmdiocb->context2; 870 871 prsp = list_get_first(&pcmd->list, struct lpfc_dmabuf, list); 872 873 lp = (uint32_t *) prsp->virt; 874 sp = (struct serv_parm *) ((uint8_t *) lp + sizeof (uint32_t)); 875 876 /* Some switches have FDMI servers returning 0 for WWN */ 877 if ((ndlp->nlp_DID != FDMI_DID) && 878 (wwn_to_u64(sp->portName.u.wwn) == 0 || 879 wwn_to_u64(sp->nodeName.u.wwn) == 0)) { 880 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS, 881 "0142 PLOGI RSP: Invalid WWN.\n"); 882 goto out; 883 } 884 if (!lpfc_check_sparm(vport, ndlp, sp, CLASS3)) 885 goto out; 886 /* PLOGI chkparm OK */ 887 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, 888 "0121 PLOGI chkparm OK Data: x%x x%x x%x x%x\n", 889 ndlp->nlp_DID, ndlp->nlp_state, 890 ndlp->nlp_flag, ndlp->nlp_rpi); 891 if (vport->cfg_fcp_class == 2 && (sp->cls2.classValid)) 892 ndlp->nlp_fcp_info |= CLASS2; 893 else 894 ndlp->nlp_fcp_info |= CLASS3; 895 896 ndlp->nlp_class_sup = 0; 897 if (sp->cls1.classValid) 898 ndlp->nlp_class_sup |= FC_COS_CLASS1; 899 if (sp->cls2.classValid) 900 ndlp->nlp_class_sup |= FC_COS_CLASS2; 901 if (sp->cls3.classValid) 902 ndlp->nlp_class_sup |= FC_COS_CLASS3; 903 if (sp->cls4.classValid) 904 ndlp->nlp_class_sup |= FC_COS_CLASS4; 905 ndlp->nlp_maxframe = 906 ((sp->cmn.bbRcvSizeMsb & 0x0F) << 8) | sp->cmn.bbRcvSizeLsb; 907 908 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 909 if (!mbox) { 910 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS, 911 "0133 PLOGI: no memory for reg_login " 912 "Data: x%x x%x x%x x%x\n", 913 ndlp->nlp_DID, ndlp->nlp_state, 914 ndlp->nlp_flag, ndlp->nlp_rpi); 915 goto out; 916 } 917 918 lpfc_unreg_rpi(vport, ndlp); 919 920 if (lpfc_reg_login(phba, vport->vpi, irsp->un.elsreq64.remoteID, 921 (uint8_t *) sp, mbox, 0) == 0) { 922 switch (ndlp->nlp_DID) { 923 case NameServer_DID: 924 mbox->mbox_cmpl = lpfc_mbx_cmpl_ns_reg_login; 925 break; 926 case FDMI_DID: 927 mbox->mbox_cmpl = lpfc_mbx_cmpl_fdmi_reg_login; 928 break; 929 default: 930 mbox->mbox_cmpl = lpfc_mbx_cmpl_reg_login; 931 } 932 mbox->context2 = lpfc_nlp_get(ndlp); 933 mbox->vport = vport; 934 if (lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT) 935 != MBX_NOT_FINISHED) { 936 lpfc_nlp_set_state(vport, ndlp, 937 NLP_STE_REG_LOGIN_ISSUE); 938 return ndlp->nlp_state; 939 } 940 /* decrement node reference count to the failed mbox 941 * command 942 */ 943 lpfc_nlp_put(ndlp); 944 mp = (struct lpfc_dmabuf *) mbox->context1; 945 lpfc_mbuf_free(phba, mp->virt, mp->phys); 946 kfree(mp); 947 mempool_free(mbox, phba->mbox_mem_pool); 948 949 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS, 950 "0134 PLOGI: cannot issue reg_login " 951 "Data: x%x x%x x%x x%x\n", 952 ndlp->nlp_DID, ndlp->nlp_state, 953 ndlp->nlp_flag, ndlp->nlp_rpi); 954 } else { 955 mempool_free(mbox, phba->mbox_mem_pool); 956 957 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS, 958 "0135 PLOGI: cannot format reg_login " 959 "Data: x%x x%x x%x x%x\n", 960 ndlp->nlp_DID, ndlp->nlp_state, 961 ndlp->nlp_flag, ndlp->nlp_rpi); 962 } 963 964 965 out: 966 if (ndlp->nlp_DID == NameServer_DID) { 967 lpfc_vport_set_state(vport, FC_VPORT_FAILED); 968 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS, 969 "0261 Cannot Register NameServer login\n"); 970 } 971 972 spin_lock_irq(shost->host_lock); 973 ndlp->nlp_flag |= NLP_DEFER_RM; 974 spin_unlock_irq(shost->host_lock); 975 return NLP_STE_FREED_NODE; 976 } 977 978 static uint32_t 979 lpfc_cmpl_logo_plogi_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 980 void *arg, uint32_t evt) 981 { 982 return ndlp->nlp_state; 983 } 984 985 static uint32_t 986 lpfc_cmpl_reglogin_plogi_issue(struct lpfc_vport *vport, 987 struct lpfc_nodelist *ndlp, void *arg, uint32_t evt) 988 { 989 return ndlp->nlp_state; 990 } 991 992 static uint32_t 993 lpfc_device_rm_plogi_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 994 void *arg, uint32_t evt) 995 { 996 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 997 998 if (ndlp->nlp_flag & NLP_NPR_2B_DISC) { 999 spin_lock_irq(shost->host_lock); 1000 ndlp->nlp_flag |= NLP_NODEV_REMOVE; 1001 spin_unlock_irq(shost->host_lock); 1002 return ndlp->nlp_state; 1003 } else { 1004 /* software abort outstanding PLOGI */ 1005 lpfc_els_abort(vport->phba, ndlp); 1006 1007 lpfc_drop_node(vport, ndlp); 1008 return NLP_STE_FREED_NODE; 1009 } 1010 } 1011 1012 static uint32_t 1013 lpfc_device_recov_plogi_issue(struct lpfc_vport *vport, 1014 struct lpfc_nodelist *ndlp, 1015 void *arg, 1016 uint32_t evt) 1017 { 1018 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 1019 struct lpfc_hba *phba = vport->phba; 1020 1021 /* Don't do anything that will mess up processing of the 1022 * previous RSCN. 1023 */ 1024 if (vport->fc_flag & FC_RSCN_DEFERRED) 1025 return ndlp->nlp_state; 1026 1027 /* software abort outstanding PLOGI */ 1028 lpfc_els_abort(phba, ndlp); 1029 1030 ndlp->nlp_prev_state = NLP_STE_PLOGI_ISSUE; 1031 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 1032 spin_lock_irq(shost->host_lock); 1033 ndlp->nlp_flag &= ~(NLP_NODEV_REMOVE | NLP_NPR_2B_DISC); 1034 spin_unlock_irq(shost->host_lock); 1035 1036 return ndlp->nlp_state; 1037 } 1038 1039 static uint32_t 1040 lpfc_rcv_plogi_adisc_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1041 void *arg, uint32_t evt) 1042 { 1043 struct lpfc_hba *phba = vport->phba; 1044 struct lpfc_iocbq *cmdiocb; 1045 1046 /* software abort outstanding ADISC */ 1047 lpfc_els_abort(phba, ndlp); 1048 1049 cmdiocb = (struct lpfc_iocbq *) arg; 1050 1051 if (lpfc_rcv_plogi(vport, ndlp, cmdiocb)) 1052 return ndlp->nlp_state; 1053 1054 ndlp->nlp_prev_state = NLP_STE_ADISC_ISSUE; 1055 lpfc_issue_els_plogi(vport, ndlp->nlp_DID, 0); 1056 lpfc_nlp_set_state(vport, ndlp, NLP_STE_PLOGI_ISSUE); 1057 1058 return ndlp->nlp_state; 1059 } 1060 1061 static uint32_t 1062 lpfc_rcv_prli_adisc_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1063 void *arg, uint32_t evt) 1064 { 1065 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 1066 1067 lpfc_els_rsp_prli_acc(vport, cmdiocb, ndlp); 1068 return ndlp->nlp_state; 1069 } 1070 1071 static uint32_t 1072 lpfc_rcv_logo_adisc_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1073 void *arg, uint32_t evt) 1074 { 1075 struct lpfc_hba *phba = vport->phba; 1076 struct lpfc_iocbq *cmdiocb; 1077 1078 cmdiocb = (struct lpfc_iocbq *) arg; 1079 1080 /* software abort outstanding ADISC */ 1081 lpfc_els_abort(phba, ndlp); 1082 1083 lpfc_rcv_logo(vport, ndlp, cmdiocb, ELS_CMD_LOGO); 1084 return ndlp->nlp_state; 1085 } 1086 1087 static uint32_t 1088 lpfc_rcv_padisc_adisc_issue(struct lpfc_vport *vport, 1089 struct lpfc_nodelist *ndlp, 1090 void *arg, uint32_t evt) 1091 { 1092 struct lpfc_iocbq *cmdiocb; 1093 1094 cmdiocb = (struct lpfc_iocbq *) arg; 1095 1096 lpfc_rcv_padisc(vport, ndlp, cmdiocb); 1097 return ndlp->nlp_state; 1098 } 1099 1100 static uint32_t 1101 lpfc_rcv_prlo_adisc_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1102 void *arg, uint32_t evt) 1103 { 1104 struct lpfc_iocbq *cmdiocb; 1105 1106 cmdiocb = (struct lpfc_iocbq *) arg; 1107 1108 /* Treat like rcv logo */ 1109 lpfc_rcv_logo(vport, ndlp, cmdiocb, ELS_CMD_PRLO); 1110 return ndlp->nlp_state; 1111 } 1112 1113 static uint32_t 1114 lpfc_cmpl_adisc_adisc_issue(struct lpfc_vport *vport, 1115 struct lpfc_nodelist *ndlp, 1116 void *arg, uint32_t evt) 1117 { 1118 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 1119 struct lpfc_hba *phba = vport->phba; 1120 struct lpfc_iocbq *cmdiocb, *rspiocb; 1121 IOCB_t *irsp; 1122 ADISC *ap; 1123 1124 cmdiocb = (struct lpfc_iocbq *) arg; 1125 rspiocb = cmdiocb->context_un.rsp_iocb; 1126 1127 ap = (ADISC *)lpfc_check_elscmpl_iocb(phba, cmdiocb, rspiocb); 1128 irsp = &rspiocb->iocb; 1129 1130 if ((irsp->ulpStatus) || 1131 (!lpfc_check_adisc(vport, ndlp, &ap->nodeName, &ap->portName))) { 1132 /* 1 sec timeout */ 1133 mod_timer(&ndlp->nlp_delayfunc, jiffies + HZ); 1134 spin_lock_irq(shost->host_lock); 1135 ndlp->nlp_flag |= NLP_DELAY_TMO; 1136 spin_unlock_irq(shost->host_lock); 1137 ndlp->nlp_last_elscmd = ELS_CMD_PLOGI; 1138 1139 memset(&ndlp->nlp_nodename, 0, sizeof(struct lpfc_name)); 1140 memset(&ndlp->nlp_portname, 0, sizeof(struct lpfc_name)); 1141 1142 ndlp->nlp_prev_state = NLP_STE_ADISC_ISSUE; 1143 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 1144 lpfc_unreg_rpi(vport, ndlp); 1145 return ndlp->nlp_state; 1146 } 1147 1148 if (ndlp->nlp_type & NLP_FCP_TARGET) { 1149 ndlp->nlp_prev_state = NLP_STE_ADISC_ISSUE; 1150 lpfc_nlp_set_state(vport, ndlp, NLP_STE_MAPPED_NODE); 1151 } else { 1152 ndlp->nlp_prev_state = NLP_STE_ADISC_ISSUE; 1153 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE); 1154 } 1155 return ndlp->nlp_state; 1156 } 1157 1158 static uint32_t 1159 lpfc_device_rm_adisc_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1160 void *arg, uint32_t evt) 1161 { 1162 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 1163 1164 if (ndlp->nlp_flag & NLP_NPR_2B_DISC) { 1165 spin_lock_irq(shost->host_lock); 1166 ndlp->nlp_flag |= NLP_NODEV_REMOVE; 1167 spin_unlock_irq(shost->host_lock); 1168 return ndlp->nlp_state; 1169 } else { 1170 /* software abort outstanding ADISC */ 1171 lpfc_els_abort(vport->phba, ndlp); 1172 1173 lpfc_drop_node(vport, ndlp); 1174 return NLP_STE_FREED_NODE; 1175 } 1176 } 1177 1178 static uint32_t 1179 lpfc_device_recov_adisc_issue(struct lpfc_vport *vport, 1180 struct lpfc_nodelist *ndlp, 1181 void *arg, 1182 uint32_t evt) 1183 { 1184 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 1185 struct lpfc_hba *phba = vport->phba; 1186 1187 /* Don't do anything that will mess up processing of the 1188 * previous RSCN. 1189 */ 1190 if (vport->fc_flag & FC_RSCN_DEFERRED) 1191 return ndlp->nlp_state; 1192 1193 /* software abort outstanding ADISC */ 1194 lpfc_els_abort(phba, ndlp); 1195 1196 ndlp->nlp_prev_state = NLP_STE_ADISC_ISSUE; 1197 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 1198 spin_lock_irq(shost->host_lock); 1199 ndlp->nlp_flag &= ~(NLP_NODEV_REMOVE | NLP_NPR_2B_DISC); 1200 spin_unlock_irq(shost->host_lock); 1201 lpfc_disc_set_adisc(vport, ndlp); 1202 return ndlp->nlp_state; 1203 } 1204 1205 static uint32_t 1206 lpfc_rcv_plogi_reglogin_issue(struct lpfc_vport *vport, 1207 struct lpfc_nodelist *ndlp, 1208 void *arg, 1209 uint32_t evt) 1210 { 1211 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 1212 1213 lpfc_rcv_plogi(vport, ndlp, cmdiocb); 1214 return ndlp->nlp_state; 1215 } 1216 1217 static uint32_t 1218 lpfc_rcv_prli_reglogin_issue(struct lpfc_vport *vport, 1219 struct lpfc_nodelist *ndlp, 1220 void *arg, 1221 uint32_t evt) 1222 { 1223 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 1224 1225 lpfc_els_rsp_prli_acc(vport, cmdiocb, ndlp); 1226 return ndlp->nlp_state; 1227 } 1228 1229 static uint32_t 1230 lpfc_rcv_logo_reglogin_issue(struct lpfc_vport *vport, 1231 struct lpfc_nodelist *ndlp, 1232 void *arg, 1233 uint32_t evt) 1234 { 1235 struct lpfc_hba *phba = vport->phba; 1236 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 1237 LPFC_MBOXQ_t *mb; 1238 LPFC_MBOXQ_t *nextmb; 1239 struct lpfc_dmabuf *mp; 1240 1241 cmdiocb = (struct lpfc_iocbq *) arg; 1242 1243 /* cleanup any ndlp on mbox q waiting for reglogin cmpl */ 1244 if ((mb = phba->sli.mbox_active)) { 1245 if ((mb->mb.mbxCommand == MBX_REG_LOGIN64) && 1246 (ndlp == (struct lpfc_nodelist *) mb->context2)) { 1247 lpfc_nlp_put(ndlp); 1248 mb->context2 = NULL; 1249 mb->mbox_cmpl = lpfc_sli_def_mbox_cmpl; 1250 } 1251 } 1252 1253 spin_lock_irq(&phba->hbalock); 1254 list_for_each_entry_safe(mb, nextmb, &phba->sli.mboxq, list) { 1255 if ((mb->mb.mbxCommand == MBX_REG_LOGIN64) && 1256 (ndlp == (struct lpfc_nodelist *) mb->context2)) { 1257 mp = (struct lpfc_dmabuf *) (mb->context1); 1258 if (mp) { 1259 __lpfc_mbuf_free(phba, mp->virt, mp->phys); 1260 kfree(mp); 1261 } 1262 lpfc_nlp_put(ndlp); 1263 list_del(&mb->list); 1264 mempool_free(mb, phba->mbox_mem_pool); 1265 } 1266 } 1267 spin_unlock_irq(&phba->hbalock); 1268 1269 lpfc_rcv_logo(vport, ndlp, cmdiocb, ELS_CMD_LOGO); 1270 return ndlp->nlp_state; 1271 } 1272 1273 static uint32_t 1274 lpfc_rcv_padisc_reglogin_issue(struct lpfc_vport *vport, 1275 struct lpfc_nodelist *ndlp, 1276 void *arg, 1277 uint32_t evt) 1278 { 1279 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 1280 1281 lpfc_rcv_padisc(vport, ndlp, cmdiocb); 1282 return ndlp->nlp_state; 1283 } 1284 1285 static uint32_t 1286 lpfc_rcv_prlo_reglogin_issue(struct lpfc_vport *vport, 1287 struct lpfc_nodelist *ndlp, 1288 void *arg, 1289 uint32_t evt) 1290 { 1291 struct lpfc_iocbq *cmdiocb; 1292 1293 cmdiocb = (struct lpfc_iocbq *) arg; 1294 lpfc_els_rsp_acc(vport, ELS_CMD_PRLO, cmdiocb, ndlp, NULL); 1295 return ndlp->nlp_state; 1296 } 1297 1298 static uint32_t 1299 lpfc_cmpl_reglogin_reglogin_issue(struct lpfc_vport *vport, 1300 struct lpfc_nodelist *ndlp, 1301 void *arg, 1302 uint32_t evt) 1303 { 1304 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 1305 LPFC_MBOXQ_t *pmb = (LPFC_MBOXQ_t *) arg; 1306 MAILBOX_t *mb = &pmb->mb; 1307 uint32_t did = mb->un.varWords[1]; 1308 1309 if (mb->mbxStatus) { 1310 /* RegLogin failed */ 1311 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY, 1312 "0246 RegLogin failed Data: x%x x%x x%x\n", 1313 did, mb->mbxStatus, vport->port_state); 1314 /* 1315 * If RegLogin failed due to lack of HBA resources do not 1316 * retry discovery. 1317 */ 1318 if (mb->mbxStatus == MBXERR_RPI_FULL) { 1319 ndlp->nlp_prev_state = NLP_STE_REG_LOGIN_ISSUE; 1320 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 1321 return ndlp->nlp_state; 1322 } 1323 1324 /* Put ndlp in npr state set plogi timer for 1 sec */ 1325 mod_timer(&ndlp->nlp_delayfunc, jiffies + HZ * 1); 1326 spin_lock_irq(shost->host_lock); 1327 ndlp->nlp_flag |= NLP_DELAY_TMO; 1328 spin_unlock_irq(shost->host_lock); 1329 ndlp->nlp_last_elscmd = ELS_CMD_PLOGI; 1330 1331 lpfc_issue_els_logo(vport, ndlp, 0); 1332 ndlp->nlp_prev_state = NLP_STE_REG_LOGIN_ISSUE; 1333 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 1334 return ndlp->nlp_state; 1335 } 1336 1337 ndlp->nlp_rpi = mb->un.varWords[0]; 1338 1339 /* Only if we are not a fabric nport do we issue PRLI */ 1340 if (!(ndlp->nlp_type & NLP_FABRIC)) { 1341 ndlp->nlp_prev_state = NLP_STE_REG_LOGIN_ISSUE; 1342 lpfc_nlp_set_state(vport, ndlp, NLP_STE_PRLI_ISSUE); 1343 lpfc_issue_els_prli(vport, ndlp, 0); 1344 } else { 1345 ndlp->nlp_prev_state = NLP_STE_REG_LOGIN_ISSUE; 1346 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE); 1347 } 1348 return ndlp->nlp_state; 1349 } 1350 1351 static uint32_t 1352 lpfc_device_rm_reglogin_issue(struct lpfc_vport *vport, 1353 struct lpfc_nodelist *ndlp, 1354 void *arg, 1355 uint32_t evt) 1356 { 1357 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 1358 1359 if (ndlp->nlp_flag & NLP_NPR_2B_DISC) { 1360 spin_lock_irq(shost->host_lock); 1361 ndlp->nlp_flag |= NLP_NODEV_REMOVE; 1362 spin_unlock_irq(shost->host_lock); 1363 return ndlp->nlp_state; 1364 } else { 1365 lpfc_drop_node(vport, ndlp); 1366 return NLP_STE_FREED_NODE; 1367 } 1368 } 1369 1370 static uint32_t 1371 lpfc_device_recov_reglogin_issue(struct lpfc_vport *vport, 1372 struct lpfc_nodelist *ndlp, 1373 void *arg, 1374 uint32_t evt) 1375 { 1376 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 1377 1378 /* Don't do anything that will mess up processing of the 1379 * previous RSCN. 1380 */ 1381 if (vport->fc_flag & FC_RSCN_DEFERRED) 1382 return ndlp->nlp_state; 1383 1384 ndlp->nlp_prev_state = NLP_STE_REG_LOGIN_ISSUE; 1385 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 1386 spin_lock_irq(shost->host_lock); 1387 ndlp->nlp_flag &= ~(NLP_NODEV_REMOVE | NLP_NPR_2B_DISC); 1388 spin_unlock_irq(shost->host_lock); 1389 lpfc_disc_set_adisc(vport, ndlp); 1390 return ndlp->nlp_state; 1391 } 1392 1393 static uint32_t 1394 lpfc_rcv_plogi_prli_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1395 void *arg, uint32_t evt) 1396 { 1397 struct lpfc_iocbq *cmdiocb; 1398 1399 cmdiocb = (struct lpfc_iocbq *) arg; 1400 1401 lpfc_rcv_plogi(vport, ndlp, cmdiocb); 1402 return ndlp->nlp_state; 1403 } 1404 1405 static uint32_t 1406 lpfc_rcv_prli_prli_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1407 void *arg, uint32_t evt) 1408 { 1409 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 1410 1411 lpfc_els_rsp_prli_acc(vport, cmdiocb, ndlp); 1412 return ndlp->nlp_state; 1413 } 1414 1415 static uint32_t 1416 lpfc_rcv_logo_prli_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1417 void *arg, uint32_t evt) 1418 { 1419 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 1420 1421 /* Software abort outstanding PRLI before sending acc */ 1422 lpfc_els_abort(vport->phba, ndlp); 1423 1424 lpfc_rcv_logo(vport, ndlp, cmdiocb, ELS_CMD_LOGO); 1425 return ndlp->nlp_state; 1426 } 1427 1428 static uint32_t 1429 lpfc_rcv_padisc_prli_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1430 void *arg, uint32_t evt) 1431 { 1432 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 1433 1434 lpfc_rcv_padisc(vport, ndlp, cmdiocb); 1435 return ndlp->nlp_state; 1436 } 1437 1438 /* This routine is envoked when we rcv a PRLO request from a nport 1439 * we are logged into. We should send back a PRLO rsp setting the 1440 * appropriate bits. 1441 * NEXT STATE = PRLI_ISSUE 1442 */ 1443 static uint32_t 1444 lpfc_rcv_prlo_prli_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1445 void *arg, uint32_t evt) 1446 { 1447 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 1448 1449 lpfc_els_rsp_acc(vport, ELS_CMD_PRLO, cmdiocb, ndlp, NULL); 1450 return ndlp->nlp_state; 1451 } 1452 1453 static uint32_t 1454 lpfc_cmpl_prli_prli_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1455 void *arg, uint32_t evt) 1456 { 1457 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 1458 struct lpfc_iocbq *cmdiocb, *rspiocb; 1459 struct lpfc_hba *phba = vport->phba; 1460 IOCB_t *irsp; 1461 PRLI *npr; 1462 1463 cmdiocb = (struct lpfc_iocbq *) arg; 1464 rspiocb = cmdiocb->context_un.rsp_iocb; 1465 npr = (PRLI *)lpfc_check_elscmpl_iocb(phba, cmdiocb, rspiocb); 1466 1467 irsp = &rspiocb->iocb; 1468 if (irsp->ulpStatus) { 1469 if ((vport->port_type == LPFC_NPIV_PORT) && 1470 vport->cfg_restrict_login) { 1471 goto out; 1472 } 1473 ndlp->nlp_prev_state = NLP_STE_PRLI_ISSUE; 1474 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE); 1475 return ndlp->nlp_state; 1476 } 1477 1478 /* Check out PRLI rsp */ 1479 ndlp->nlp_type &= ~(NLP_FCP_TARGET | NLP_FCP_INITIATOR); 1480 ndlp->nlp_fcp_info &= ~NLP_FCP_2_DEVICE; 1481 if ((npr->acceptRspCode == PRLI_REQ_EXECUTED) && 1482 (npr->prliType == PRLI_FCP_TYPE)) { 1483 if (npr->initiatorFunc) 1484 ndlp->nlp_type |= NLP_FCP_INITIATOR; 1485 if (npr->targetFunc) 1486 ndlp->nlp_type |= NLP_FCP_TARGET; 1487 if (npr->Retry) 1488 ndlp->nlp_fcp_info |= NLP_FCP_2_DEVICE; 1489 } 1490 if (!(ndlp->nlp_type & NLP_FCP_TARGET) && 1491 (vport->port_type == LPFC_NPIV_PORT) && 1492 vport->cfg_restrict_login) { 1493 out: 1494 spin_lock_irq(shost->host_lock); 1495 ndlp->nlp_flag |= NLP_TARGET_REMOVE; 1496 spin_unlock_irq(shost->host_lock); 1497 lpfc_issue_els_logo(vport, ndlp, 0); 1498 1499 ndlp->nlp_prev_state = NLP_STE_PRLI_ISSUE; 1500 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 1501 return ndlp->nlp_state; 1502 } 1503 1504 ndlp->nlp_prev_state = NLP_STE_PRLI_ISSUE; 1505 if (ndlp->nlp_type & NLP_FCP_TARGET) 1506 lpfc_nlp_set_state(vport, ndlp, NLP_STE_MAPPED_NODE); 1507 else 1508 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE); 1509 return ndlp->nlp_state; 1510 } 1511 1512 /*! lpfc_device_rm_prli_issue 1513 * 1514 * \pre 1515 * \post 1516 * \param phba 1517 * \param ndlp 1518 * \param arg 1519 * \param evt 1520 * \return uint32_t 1521 * 1522 * \b Description: 1523 * This routine is envoked when we a request to remove a nport we are in the 1524 * process of PRLIing. We should software abort outstanding prli, unreg 1525 * login, send a logout. We will change node state to UNUSED_NODE, put it 1526 * on plogi list so it can be freed when LOGO completes. 1527 * 1528 */ 1529 1530 static uint32_t 1531 lpfc_device_rm_prli_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1532 void *arg, uint32_t evt) 1533 { 1534 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 1535 1536 if (ndlp->nlp_flag & NLP_NPR_2B_DISC) { 1537 spin_lock_irq(shost->host_lock); 1538 ndlp->nlp_flag |= NLP_NODEV_REMOVE; 1539 spin_unlock_irq(shost->host_lock); 1540 return ndlp->nlp_state; 1541 } else { 1542 /* software abort outstanding PLOGI */ 1543 lpfc_els_abort(vport->phba, ndlp); 1544 1545 lpfc_drop_node(vport, ndlp); 1546 return NLP_STE_FREED_NODE; 1547 } 1548 } 1549 1550 1551 /*! lpfc_device_recov_prli_issue 1552 * 1553 * \pre 1554 * \post 1555 * \param phba 1556 * \param ndlp 1557 * \param arg 1558 * \param evt 1559 * \return uint32_t 1560 * 1561 * \b Description: 1562 * The routine is envoked when the state of a device is unknown, like 1563 * during a link down. We should remove the nodelist entry from the 1564 * unmapped list, issue a UNREG_LOGIN, do a software abort of the 1565 * outstanding PRLI command, then free the node entry. 1566 */ 1567 static uint32_t 1568 lpfc_device_recov_prli_issue(struct lpfc_vport *vport, 1569 struct lpfc_nodelist *ndlp, 1570 void *arg, 1571 uint32_t evt) 1572 { 1573 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 1574 struct lpfc_hba *phba = vport->phba; 1575 1576 /* Don't do anything that will mess up processing of the 1577 * previous RSCN. 1578 */ 1579 if (vport->fc_flag & FC_RSCN_DEFERRED) 1580 return ndlp->nlp_state; 1581 1582 /* software abort outstanding PRLI */ 1583 lpfc_els_abort(phba, ndlp); 1584 1585 ndlp->nlp_prev_state = NLP_STE_PRLI_ISSUE; 1586 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 1587 spin_lock_irq(shost->host_lock); 1588 ndlp->nlp_flag &= ~(NLP_NODEV_REMOVE | NLP_NPR_2B_DISC); 1589 spin_unlock_irq(shost->host_lock); 1590 lpfc_disc_set_adisc(vport, ndlp); 1591 return ndlp->nlp_state; 1592 } 1593 1594 static uint32_t 1595 lpfc_rcv_plogi_unmap_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1596 void *arg, uint32_t evt) 1597 { 1598 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 1599 1600 lpfc_rcv_plogi(vport, ndlp, cmdiocb); 1601 return ndlp->nlp_state; 1602 } 1603 1604 static uint32_t 1605 lpfc_rcv_prli_unmap_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1606 void *arg, uint32_t evt) 1607 { 1608 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 1609 1610 lpfc_rcv_prli(vport, ndlp, cmdiocb); 1611 lpfc_els_rsp_prli_acc(vport, cmdiocb, ndlp); 1612 return ndlp->nlp_state; 1613 } 1614 1615 static uint32_t 1616 lpfc_rcv_logo_unmap_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1617 void *arg, uint32_t evt) 1618 { 1619 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 1620 1621 lpfc_rcv_logo(vport, ndlp, cmdiocb, ELS_CMD_LOGO); 1622 return ndlp->nlp_state; 1623 } 1624 1625 static uint32_t 1626 lpfc_rcv_padisc_unmap_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1627 void *arg, uint32_t evt) 1628 { 1629 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 1630 1631 lpfc_rcv_padisc(vport, ndlp, cmdiocb); 1632 return ndlp->nlp_state; 1633 } 1634 1635 static uint32_t 1636 lpfc_rcv_prlo_unmap_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1637 void *arg, uint32_t evt) 1638 { 1639 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 1640 1641 lpfc_els_rsp_acc(vport, ELS_CMD_PRLO, cmdiocb, ndlp, NULL); 1642 return ndlp->nlp_state; 1643 } 1644 1645 static uint32_t 1646 lpfc_device_recov_unmap_node(struct lpfc_vport *vport, 1647 struct lpfc_nodelist *ndlp, 1648 void *arg, 1649 uint32_t evt) 1650 { 1651 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 1652 1653 ndlp->nlp_prev_state = NLP_STE_UNMAPPED_NODE; 1654 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 1655 spin_lock_irq(shost->host_lock); 1656 ndlp->nlp_flag &= ~(NLP_NODEV_REMOVE | NLP_NPR_2B_DISC); 1657 spin_unlock_irq(shost->host_lock); 1658 lpfc_disc_set_adisc(vport, ndlp); 1659 1660 return ndlp->nlp_state; 1661 } 1662 1663 static uint32_t 1664 lpfc_rcv_plogi_mapped_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1665 void *arg, uint32_t evt) 1666 { 1667 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 1668 1669 lpfc_rcv_plogi(vport, ndlp, cmdiocb); 1670 return ndlp->nlp_state; 1671 } 1672 1673 static uint32_t 1674 lpfc_rcv_prli_mapped_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1675 void *arg, uint32_t evt) 1676 { 1677 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 1678 1679 lpfc_els_rsp_prli_acc(vport, cmdiocb, ndlp); 1680 return ndlp->nlp_state; 1681 } 1682 1683 static uint32_t 1684 lpfc_rcv_logo_mapped_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1685 void *arg, uint32_t evt) 1686 { 1687 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 1688 1689 lpfc_rcv_logo(vport, ndlp, cmdiocb, ELS_CMD_LOGO); 1690 return ndlp->nlp_state; 1691 } 1692 1693 static uint32_t 1694 lpfc_rcv_padisc_mapped_node(struct lpfc_vport *vport, 1695 struct lpfc_nodelist *ndlp, 1696 void *arg, uint32_t evt) 1697 { 1698 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 1699 1700 lpfc_rcv_padisc(vport, ndlp, cmdiocb); 1701 return ndlp->nlp_state; 1702 } 1703 1704 static uint32_t 1705 lpfc_rcv_prlo_mapped_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1706 void *arg, uint32_t evt) 1707 { 1708 struct lpfc_hba *phba = vport->phba; 1709 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 1710 1711 /* flush the target */ 1712 lpfc_sli_abort_iocb(vport, &phba->sli.ring[phba->sli.fcp_ring], 1713 ndlp->nlp_sid, 0, LPFC_CTX_TGT); 1714 1715 /* Treat like rcv logo */ 1716 lpfc_rcv_logo(vport, ndlp, cmdiocb, ELS_CMD_PRLO); 1717 return ndlp->nlp_state; 1718 } 1719 1720 static uint32_t 1721 lpfc_device_recov_mapped_node(struct lpfc_vport *vport, 1722 struct lpfc_nodelist *ndlp, 1723 void *arg, 1724 uint32_t evt) 1725 { 1726 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 1727 1728 ndlp->nlp_prev_state = NLP_STE_MAPPED_NODE; 1729 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); 1730 spin_lock_irq(shost->host_lock); 1731 ndlp->nlp_flag &= ~(NLP_NODEV_REMOVE | NLP_NPR_2B_DISC); 1732 spin_unlock_irq(shost->host_lock); 1733 lpfc_disc_set_adisc(vport, ndlp); 1734 return ndlp->nlp_state; 1735 } 1736 1737 static uint32_t 1738 lpfc_rcv_plogi_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1739 void *arg, uint32_t evt) 1740 { 1741 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 1742 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 1743 1744 /* Ignore PLOGI if we have an outstanding LOGO */ 1745 if (ndlp->nlp_flag & (NLP_LOGO_SND | NLP_LOGO_ACC)) { 1746 return ndlp->nlp_state; 1747 } 1748 1749 if (lpfc_rcv_plogi(vport, ndlp, cmdiocb)) { 1750 spin_lock_irq(shost->host_lock); 1751 ndlp->nlp_flag &= ~NLP_NPR_ADISC; 1752 spin_unlock_irq(shost->host_lock); 1753 return ndlp->nlp_state; 1754 } 1755 1756 /* send PLOGI immediately, move to PLOGI issue state */ 1757 if (!(ndlp->nlp_flag & NLP_DELAY_TMO)) { 1758 ndlp->nlp_prev_state = NLP_STE_NPR_NODE; 1759 lpfc_nlp_set_state(vport, ndlp, NLP_STE_PLOGI_ISSUE); 1760 lpfc_issue_els_plogi(vport, ndlp->nlp_DID, 0); 1761 } 1762 1763 return ndlp->nlp_state; 1764 } 1765 1766 static uint32_t 1767 lpfc_rcv_prli_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1768 void *arg, uint32_t evt) 1769 { 1770 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 1771 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 1772 struct ls_rjt stat; 1773 1774 memset(&stat, 0, sizeof (struct ls_rjt)); 1775 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC; 1776 stat.un.b.lsRjtRsnCodeExp = LSEXP_NOTHING_MORE; 1777 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, NULL); 1778 1779 if (!(ndlp->nlp_flag & NLP_DELAY_TMO)) { 1780 if (ndlp->nlp_flag & NLP_NPR_ADISC) { 1781 spin_lock_irq(shost->host_lock); 1782 ndlp->nlp_flag &= ~NLP_NPR_ADISC; 1783 ndlp->nlp_prev_state = NLP_STE_NPR_NODE; 1784 spin_unlock_irq(shost->host_lock); 1785 lpfc_nlp_set_state(vport, ndlp, NLP_STE_ADISC_ISSUE); 1786 lpfc_issue_els_adisc(vport, ndlp, 0); 1787 } else { 1788 ndlp->nlp_prev_state = NLP_STE_NPR_NODE; 1789 lpfc_nlp_set_state(vport, ndlp, NLP_STE_PLOGI_ISSUE); 1790 lpfc_issue_els_plogi(vport, ndlp->nlp_DID, 0); 1791 } 1792 } 1793 return ndlp->nlp_state; 1794 } 1795 1796 static uint32_t 1797 lpfc_rcv_logo_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1798 void *arg, uint32_t evt) 1799 { 1800 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 1801 1802 lpfc_rcv_logo(vport, ndlp, cmdiocb, ELS_CMD_LOGO); 1803 return ndlp->nlp_state; 1804 } 1805 1806 static uint32_t 1807 lpfc_rcv_padisc_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1808 void *arg, uint32_t evt) 1809 { 1810 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 1811 1812 lpfc_rcv_padisc(vport, ndlp, cmdiocb); 1813 1814 /* 1815 * Do not start discovery if discovery is about to start 1816 * or discovery in progress for this node. Starting discovery 1817 * here will affect the counting of discovery threads. 1818 */ 1819 if (!(ndlp->nlp_flag & NLP_DELAY_TMO) && 1820 !(ndlp->nlp_flag & NLP_NPR_2B_DISC)) { 1821 if (ndlp->nlp_flag & NLP_NPR_ADISC) { 1822 ndlp->nlp_flag &= ~NLP_NPR_ADISC; 1823 ndlp->nlp_prev_state = NLP_STE_NPR_NODE; 1824 lpfc_nlp_set_state(vport, ndlp, NLP_STE_ADISC_ISSUE); 1825 lpfc_issue_els_adisc(vport, ndlp, 0); 1826 } else { 1827 ndlp->nlp_prev_state = NLP_STE_NPR_NODE; 1828 lpfc_nlp_set_state(vport, ndlp, NLP_STE_PLOGI_ISSUE); 1829 lpfc_issue_els_plogi(vport, ndlp->nlp_DID, 0); 1830 } 1831 } 1832 return ndlp->nlp_state; 1833 } 1834 1835 static uint32_t 1836 lpfc_rcv_prlo_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1837 void *arg, uint32_t evt) 1838 { 1839 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 1840 struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; 1841 1842 spin_lock_irq(shost->host_lock); 1843 ndlp->nlp_flag |= NLP_LOGO_ACC; 1844 spin_unlock_irq(shost->host_lock); 1845 1846 lpfc_els_rsp_acc(vport, ELS_CMD_ACC, cmdiocb, ndlp, NULL); 1847 1848 if ((ndlp->nlp_flag & NLP_DELAY_TMO) == 0) { 1849 mod_timer(&ndlp->nlp_delayfunc, jiffies + HZ * 1); 1850 spin_lock_irq(shost->host_lock); 1851 ndlp->nlp_flag |= NLP_DELAY_TMO; 1852 ndlp->nlp_flag &= ~NLP_NPR_ADISC; 1853 spin_unlock_irq(shost->host_lock); 1854 ndlp->nlp_last_elscmd = ELS_CMD_PLOGI; 1855 } else { 1856 spin_lock_irq(shost->host_lock); 1857 ndlp->nlp_flag &= ~NLP_NPR_ADISC; 1858 spin_unlock_irq(shost->host_lock); 1859 } 1860 return ndlp->nlp_state; 1861 } 1862 1863 static uint32_t 1864 lpfc_cmpl_plogi_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1865 void *arg, uint32_t evt) 1866 { 1867 struct lpfc_iocbq *cmdiocb, *rspiocb; 1868 IOCB_t *irsp; 1869 1870 cmdiocb = (struct lpfc_iocbq *) arg; 1871 rspiocb = cmdiocb->context_un.rsp_iocb; 1872 1873 irsp = &rspiocb->iocb; 1874 if (irsp->ulpStatus) { 1875 ndlp->nlp_flag |= NLP_DEFER_RM; 1876 return NLP_STE_FREED_NODE; 1877 } 1878 return ndlp->nlp_state; 1879 } 1880 1881 static uint32_t 1882 lpfc_cmpl_prli_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1883 void *arg, uint32_t evt) 1884 { 1885 struct lpfc_iocbq *cmdiocb, *rspiocb; 1886 IOCB_t *irsp; 1887 1888 cmdiocb = (struct lpfc_iocbq *) arg; 1889 rspiocb = cmdiocb->context_un.rsp_iocb; 1890 1891 irsp = &rspiocb->iocb; 1892 if (irsp->ulpStatus && (ndlp->nlp_flag & NLP_NODEV_REMOVE)) { 1893 lpfc_drop_node(vport, ndlp); 1894 return NLP_STE_FREED_NODE; 1895 } 1896 return ndlp->nlp_state; 1897 } 1898 1899 static uint32_t 1900 lpfc_cmpl_logo_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1901 void *arg, uint32_t evt) 1902 { 1903 lpfc_unreg_rpi(vport, ndlp); 1904 /* This routine does nothing, just return the current state */ 1905 return ndlp->nlp_state; 1906 } 1907 1908 static uint32_t 1909 lpfc_cmpl_adisc_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1910 void *arg, uint32_t evt) 1911 { 1912 struct lpfc_iocbq *cmdiocb, *rspiocb; 1913 IOCB_t *irsp; 1914 1915 cmdiocb = (struct lpfc_iocbq *) arg; 1916 rspiocb = cmdiocb->context_un.rsp_iocb; 1917 1918 irsp = &rspiocb->iocb; 1919 if (irsp->ulpStatus && (ndlp->nlp_flag & NLP_NODEV_REMOVE)) { 1920 lpfc_drop_node(vport, ndlp); 1921 return NLP_STE_FREED_NODE; 1922 } 1923 return ndlp->nlp_state; 1924 } 1925 1926 static uint32_t 1927 lpfc_cmpl_reglogin_npr_node(struct lpfc_vport *vport, 1928 struct lpfc_nodelist *ndlp, 1929 void *arg, uint32_t evt) 1930 { 1931 LPFC_MBOXQ_t *pmb = (LPFC_MBOXQ_t *) arg; 1932 MAILBOX_t *mb = &pmb->mb; 1933 1934 if (!mb->mbxStatus) 1935 ndlp->nlp_rpi = mb->un.varWords[0]; 1936 else { 1937 if (ndlp->nlp_flag & NLP_NODEV_REMOVE) { 1938 lpfc_drop_node(vport, ndlp); 1939 return NLP_STE_FREED_NODE; 1940 } 1941 } 1942 return ndlp->nlp_state; 1943 } 1944 1945 static uint32_t 1946 lpfc_device_rm_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1947 void *arg, uint32_t evt) 1948 { 1949 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 1950 1951 if (ndlp->nlp_flag & NLP_NPR_2B_DISC) { 1952 spin_lock_irq(shost->host_lock); 1953 ndlp->nlp_flag |= NLP_NODEV_REMOVE; 1954 spin_unlock_irq(shost->host_lock); 1955 return ndlp->nlp_state; 1956 } 1957 lpfc_drop_node(vport, ndlp); 1958 return NLP_STE_FREED_NODE; 1959 } 1960 1961 static uint32_t 1962 lpfc_device_recov_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1963 void *arg, uint32_t evt) 1964 { 1965 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 1966 1967 /* Don't do anything that will mess up processing of the 1968 * previous RSCN. 1969 */ 1970 if (vport->fc_flag & FC_RSCN_DEFERRED) 1971 return ndlp->nlp_state; 1972 1973 spin_lock_irq(shost->host_lock); 1974 ndlp->nlp_flag &= ~(NLP_NODEV_REMOVE | NLP_NPR_2B_DISC); 1975 spin_unlock_irq(shost->host_lock); 1976 if (ndlp->nlp_flag & NLP_DELAY_TMO) { 1977 lpfc_cancel_retry_delay_tmo(vport, ndlp); 1978 } 1979 return ndlp->nlp_state; 1980 } 1981 1982 1983 /* This next section defines the NPort Discovery State Machine */ 1984 1985 /* There are 4 different double linked lists nodelist entries can reside on. 1986 * The plogi list and adisc list are used when Link Up discovery or RSCN 1987 * processing is needed. Each list holds the nodes that we will send PLOGI 1988 * or ADISC on. These lists will keep track of what nodes will be effected 1989 * by an RSCN, or a Link Up (Typically, all nodes are effected on Link Up). 1990 * The unmapped_list will contain all nodes that we have successfully logged 1991 * into at the Fibre Channel level. The mapped_list will contain all nodes 1992 * that are mapped FCP targets. 1993 */ 1994 /* 1995 * The bind list is a list of undiscovered (potentially non-existent) nodes 1996 * that we have saved binding information on. This information is used when 1997 * nodes transition from the unmapped to the mapped list. 1998 */ 1999 /* For UNUSED_NODE state, the node has just been allocated . 2000 * For PLOGI_ISSUE and REG_LOGIN_ISSUE, the node is on 2001 * the PLOGI list. For REG_LOGIN_COMPL, the node is taken off the PLOGI list 2002 * and put on the unmapped list. For ADISC processing, the node is taken off 2003 * the ADISC list and placed on either the mapped or unmapped list (depending 2004 * on its previous state). Once on the unmapped list, a PRLI is issued and the 2005 * state changed to PRLI_ISSUE. When the PRLI completion occurs, the state is 2006 * changed to UNMAPPED_NODE. If the completion indicates a mapped 2007 * node, the node is taken off the unmapped list. The binding list is checked 2008 * for a valid binding, or a binding is automatically assigned. If binding 2009 * assignment is unsuccessful, the node is left on the unmapped list. If 2010 * binding assignment is successful, the associated binding list entry (if 2011 * any) is removed, and the node is placed on the mapped list. 2012 */ 2013 /* 2014 * For a Link Down, all nodes on the ADISC, PLOGI, unmapped or mapped 2015 * lists will receive a DEVICE_RECOVERY event. If the linkdown or devloss timers 2016 * expire, all effected nodes will receive a DEVICE_RM event. 2017 */ 2018 /* 2019 * For a Link Up or RSCN, all nodes will move from the mapped / unmapped lists 2020 * to either the ADISC or PLOGI list. After a Nameserver query or ALPA loopmap 2021 * check, additional nodes may be added or removed (via DEVICE_RM) to / from 2022 * the PLOGI or ADISC lists. Once the PLOGI and ADISC lists are populated, 2023 * we will first process the ADISC list. 32 entries are processed initially and 2024 * ADISC is initited for each one. Completions / Events for each node are 2025 * funnelled thru the state machine. As each node finishes ADISC processing, it 2026 * starts ADISC for any nodes waiting for ADISC processing. If no nodes are 2027 * waiting, and the ADISC list count is identically 0, then we are done. For 2028 * Link Up discovery, since all nodes on the PLOGI list are UNREG_LOGIN'ed, we 2029 * can issue a CLEAR_LA and reenable Link Events. Next we will process the PLOGI 2030 * list. 32 entries are processed initially and PLOGI is initited for each one. 2031 * Completions / Events for each node are funnelled thru the state machine. As 2032 * each node finishes PLOGI processing, it starts PLOGI for any nodes waiting 2033 * for PLOGI processing. If no nodes are waiting, and the PLOGI list count is 2034 * indentically 0, then we are done. We have now completed discovery / RSCN 2035 * handling. Upon completion, ALL nodes should be on either the mapped or 2036 * unmapped lists. 2037 */ 2038 2039 static uint32_t (*lpfc_disc_action[NLP_STE_MAX_STATE * NLP_EVT_MAX_EVENT]) 2040 (struct lpfc_vport *, struct lpfc_nodelist *, void *, uint32_t) = { 2041 /* Action routine Event Current State */ 2042 lpfc_rcv_plogi_unused_node, /* RCV_PLOGI UNUSED_NODE */ 2043 lpfc_rcv_els_unused_node, /* RCV_PRLI */ 2044 lpfc_rcv_logo_unused_node, /* RCV_LOGO */ 2045 lpfc_rcv_els_unused_node, /* RCV_ADISC */ 2046 lpfc_rcv_els_unused_node, /* RCV_PDISC */ 2047 lpfc_rcv_els_unused_node, /* RCV_PRLO */ 2048 lpfc_disc_illegal, /* CMPL_PLOGI */ 2049 lpfc_disc_illegal, /* CMPL_PRLI */ 2050 lpfc_cmpl_logo_unused_node, /* CMPL_LOGO */ 2051 lpfc_disc_illegal, /* CMPL_ADISC */ 2052 lpfc_disc_illegal, /* CMPL_REG_LOGIN */ 2053 lpfc_device_rm_unused_node, /* DEVICE_RM */ 2054 lpfc_disc_illegal, /* DEVICE_RECOVERY */ 2055 2056 lpfc_rcv_plogi_plogi_issue, /* RCV_PLOGI PLOGI_ISSUE */ 2057 lpfc_rcv_prli_plogi_issue, /* RCV_PRLI */ 2058 lpfc_rcv_logo_plogi_issue, /* RCV_LOGO */ 2059 lpfc_rcv_els_plogi_issue, /* RCV_ADISC */ 2060 lpfc_rcv_els_plogi_issue, /* RCV_PDISC */ 2061 lpfc_rcv_els_plogi_issue, /* RCV_PRLO */ 2062 lpfc_cmpl_plogi_plogi_issue, /* CMPL_PLOGI */ 2063 lpfc_disc_illegal, /* CMPL_PRLI */ 2064 lpfc_cmpl_logo_plogi_issue, /* CMPL_LOGO */ 2065 lpfc_disc_illegal, /* CMPL_ADISC */ 2066 lpfc_cmpl_reglogin_plogi_issue,/* CMPL_REG_LOGIN */ 2067 lpfc_device_rm_plogi_issue, /* DEVICE_RM */ 2068 lpfc_device_recov_plogi_issue, /* DEVICE_RECOVERY */ 2069 2070 lpfc_rcv_plogi_adisc_issue, /* RCV_PLOGI ADISC_ISSUE */ 2071 lpfc_rcv_prli_adisc_issue, /* RCV_PRLI */ 2072 lpfc_rcv_logo_adisc_issue, /* RCV_LOGO */ 2073 lpfc_rcv_padisc_adisc_issue, /* RCV_ADISC */ 2074 lpfc_rcv_padisc_adisc_issue, /* RCV_PDISC */ 2075 lpfc_rcv_prlo_adisc_issue, /* RCV_PRLO */ 2076 lpfc_disc_illegal, /* CMPL_PLOGI */ 2077 lpfc_disc_illegal, /* CMPL_PRLI */ 2078 lpfc_disc_illegal, /* CMPL_LOGO */ 2079 lpfc_cmpl_adisc_adisc_issue, /* CMPL_ADISC */ 2080 lpfc_disc_illegal, /* CMPL_REG_LOGIN */ 2081 lpfc_device_rm_adisc_issue, /* DEVICE_RM */ 2082 lpfc_device_recov_adisc_issue, /* DEVICE_RECOVERY */ 2083 2084 lpfc_rcv_plogi_reglogin_issue, /* RCV_PLOGI REG_LOGIN_ISSUE */ 2085 lpfc_rcv_prli_reglogin_issue, /* RCV_PLOGI */ 2086 lpfc_rcv_logo_reglogin_issue, /* RCV_LOGO */ 2087 lpfc_rcv_padisc_reglogin_issue, /* RCV_ADISC */ 2088 lpfc_rcv_padisc_reglogin_issue, /* RCV_PDISC */ 2089 lpfc_rcv_prlo_reglogin_issue, /* RCV_PRLO */ 2090 lpfc_cmpl_plogi_illegal, /* CMPL_PLOGI */ 2091 lpfc_disc_illegal, /* CMPL_PRLI */ 2092 lpfc_disc_illegal, /* CMPL_LOGO */ 2093 lpfc_disc_illegal, /* CMPL_ADISC */ 2094 lpfc_cmpl_reglogin_reglogin_issue,/* CMPL_REG_LOGIN */ 2095 lpfc_device_rm_reglogin_issue, /* DEVICE_RM */ 2096 lpfc_device_recov_reglogin_issue,/* DEVICE_RECOVERY */ 2097 2098 lpfc_rcv_plogi_prli_issue, /* RCV_PLOGI PRLI_ISSUE */ 2099 lpfc_rcv_prli_prli_issue, /* RCV_PRLI */ 2100 lpfc_rcv_logo_prli_issue, /* RCV_LOGO */ 2101 lpfc_rcv_padisc_prli_issue, /* RCV_ADISC */ 2102 lpfc_rcv_padisc_prli_issue, /* RCV_PDISC */ 2103 lpfc_rcv_prlo_prli_issue, /* RCV_PRLO */ 2104 lpfc_cmpl_plogi_illegal, /* CMPL_PLOGI */ 2105 lpfc_cmpl_prli_prli_issue, /* CMPL_PRLI */ 2106 lpfc_disc_illegal, /* CMPL_LOGO */ 2107 lpfc_disc_illegal, /* CMPL_ADISC */ 2108 lpfc_disc_illegal, /* CMPL_REG_LOGIN */ 2109 lpfc_device_rm_prli_issue, /* DEVICE_RM */ 2110 lpfc_device_recov_prli_issue, /* DEVICE_RECOVERY */ 2111 2112 lpfc_rcv_plogi_unmap_node, /* RCV_PLOGI UNMAPPED_NODE */ 2113 lpfc_rcv_prli_unmap_node, /* RCV_PRLI */ 2114 lpfc_rcv_logo_unmap_node, /* RCV_LOGO */ 2115 lpfc_rcv_padisc_unmap_node, /* RCV_ADISC */ 2116 lpfc_rcv_padisc_unmap_node, /* RCV_PDISC */ 2117 lpfc_rcv_prlo_unmap_node, /* RCV_PRLO */ 2118 lpfc_disc_illegal, /* CMPL_PLOGI */ 2119 lpfc_disc_illegal, /* CMPL_PRLI */ 2120 lpfc_disc_illegal, /* CMPL_LOGO */ 2121 lpfc_disc_illegal, /* CMPL_ADISC */ 2122 lpfc_disc_illegal, /* CMPL_REG_LOGIN */ 2123 lpfc_disc_illegal, /* DEVICE_RM */ 2124 lpfc_device_recov_unmap_node, /* DEVICE_RECOVERY */ 2125 2126 lpfc_rcv_plogi_mapped_node, /* RCV_PLOGI MAPPED_NODE */ 2127 lpfc_rcv_prli_mapped_node, /* RCV_PRLI */ 2128 lpfc_rcv_logo_mapped_node, /* RCV_LOGO */ 2129 lpfc_rcv_padisc_mapped_node, /* RCV_ADISC */ 2130 lpfc_rcv_padisc_mapped_node, /* RCV_PDISC */ 2131 lpfc_rcv_prlo_mapped_node, /* RCV_PRLO */ 2132 lpfc_disc_illegal, /* CMPL_PLOGI */ 2133 lpfc_disc_illegal, /* CMPL_PRLI */ 2134 lpfc_disc_illegal, /* CMPL_LOGO */ 2135 lpfc_disc_illegal, /* CMPL_ADISC */ 2136 lpfc_disc_illegal, /* CMPL_REG_LOGIN */ 2137 lpfc_disc_illegal, /* DEVICE_RM */ 2138 lpfc_device_recov_mapped_node, /* DEVICE_RECOVERY */ 2139 2140 lpfc_rcv_plogi_npr_node, /* RCV_PLOGI NPR_NODE */ 2141 lpfc_rcv_prli_npr_node, /* RCV_PRLI */ 2142 lpfc_rcv_logo_npr_node, /* RCV_LOGO */ 2143 lpfc_rcv_padisc_npr_node, /* RCV_ADISC */ 2144 lpfc_rcv_padisc_npr_node, /* RCV_PDISC */ 2145 lpfc_rcv_prlo_npr_node, /* RCV_PRLO */ 2146 lpfc_cmpl_plogi_npr_node, /* CMPL_PLOGI */ 2147 lpfc_cmpl_prli_npr_node, /* CMPL_PRLI */ 2148 lpfc_cmpl_logo_npr_node, /* CMPL_LOGO */ 2149 lpfc_cmpl_adisc_npr_node, /* CMPL_ADISC */ 2150 lpfc_cmpl_reglogin_npr_node, /* CMPL_REG_LOGIN */ 2151 lpfc_device_rm_npr_node, /* DEVICE_RM */ 2152 lpfc_device_recov_npr_node, /* DEVICE_RECOVERY */ 2153 }; 2154 2155 int 2156 lpfc_disc_state_machine(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 2157 void *arg, uint32_t evt) 2158 { 2159 uint32_t cur_state, rc; 2160 uint32_t(*func) (struct lpfc_vport *, struct lpfc_nodelist *, void *, 2161 uint32_t); 2162 uint32_t got_ndlp = 0; 2163 2164 if (lpfc_nlp_get(ndlp)) 2165 got_ndlp = 1; 2166 2167 cur_state = ndlp->nlp_state; 2168 2169 /* DSM in event <evt> on NPort <nlp_DID> in state <cur_state> */ 2170 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, 2171 "0211 DSM in event x%x on NPort x%x in " 2172 "state %d Data: x%x\n", 2173 evt, ndlp->nlp_DID, cur_state, ndlp->nlp_flag); 2174 2175 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_DSM, 2176 "DSM in: evt:%d ste:%d did:x%x", 2177 evt, cur_state, ndlp->nlp_DID); 2178 2179 func = lpfc_disc_action[(cur_state * NLP_EVT_MAX_EVENT) + evt]; 2180 rc = (func) (vport, ndlp, arg, evt); 2181 2182 /* DSM out state <rc> on NPort <nlp_DID> */ 2183 if (got_ndlp) { 2184 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, 2185 "0212 DSM out state %d on NPort x%x Data: x%x\n", 2186 rc, ndlp->nlp_DID, ndlp->nlp_flag); 2187 2188 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_DSM, 2189 "DSM out: ste:%d did:x%x flg:x%x", 2190 rc, ndlp->nlp_DID, ndlp->nlp_flag); 2191 /* Decrement the ndlp reference count held for this function */ 2192 lpfc_nlp_put(ndlp); 2193 } else { 2194 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, 2195 "0212 DSM out state %d on NPort free\n", rc); 2196 2197 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_DSM, 2198 "DSM out: ste:%d did:x%x flg:x%x", 2199 rc, 0, 0); 2200 } 2201 2202 return rc; 2203 } 2204