/******************************************************************* * This file is part of the Emulex Linux Device Driver for * * Fibre Channel Host Bus Adapters. * * Copyright (C) 2004-2007 Emulex. All rights reserved. * * EMULEX and SLI are trademarks of Emulex. * * www.emulex.com * * Portions Copyright (C) 2004-2005 Christoph Hellwig * * * * This program is free software; you can redistribute it and/or * * modify it under the terms of version 2 of the GNU General * * Public License as published by the Free Software Foundation. * * This program is distributed in the hope that it will be useful. * * ALL EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND * * WARRANTIES, INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY, * * FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT, ARE * * DISCLAIMED, EXCEPT TO THE EXTENT THAT SUCH DISCLAIMERS ARE HELD * * TO BE LEGALLY INVALID. See the GNU General Public License for * * more details, a copy of which can be found in the file COPYING * * included with this package. * *******************************************************************/ #include #include #include #include #include #include #include #include "lpfc_hw.h" #include "lpfc_sli.h" #include "lpfc_disc.h" #include "lpfc_scsi.h" #include "lpfc.h" #include "lpfc_logmsg.h" #include "lpfc_crtn.h" #include "lpfc_vport.h" #include "lpfc_debugfs.h" static int lpfc_els_retry(struct lpfc_hba *, struct lpfc_iocbq *, struct lpfc_iocbq *); static void lpfc_cmpl_fabric_iocb(struct lpfc_hba *, struct lpfc_iocbq *, struct lpfc_iocbq *); static int lpfc_max_els_tries = 3; int lpfc_els_chk_latt(struct lpfc_vport *vport) { struct Scsi_Host *shost = lpfc_shost_from_vport(vport); struct lpfc_hba *phba = vport->phba; uint32_t ha_copy; if (vport->port_state >= LPFC_VPORT_READY || phba->link_state == LPFC_LINK_DOWN) return 0; /* Read the HBA Host Attention Register */ ha_copy = readl(phba->HAregaddr); if (!(ha_copy & HA_LATT)) return 0; /* Pending Link Event during Discovery */ lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY, "0237 Pending Link Event during " "Discovery: State x%x\n", phba->pport->port_state); /* CLEAR_LA should re-enable link attention events and * we should then imediately take a LATT event. The * LATT processing should call lpfc_linkdown() which * will cleanup any left over in-progress discovery * events. */ spin_lock_irq(shost->host_lock); vport->fc_flag |= FC_ABORT_DISCOVERY; spin_unlock_irq(shost->host_lock); if (phba->link_state != LPFC_CLEAR_LA) lpfc_issue_clear_la(phba, vport); return 1; } static struct lpfc_iocbq * lpfc_prep_els_iocb(struct lpfc_vport *vport, uint8_t expectRsp, uint16_t cmdSize, uint8_t retry, struct lpfc_nodelist *ndlp, uint32_t did, uint32_t elscmd) { struct lpfc_hba *phba = vport->phba; struct lpfc_iocbq *elsiocb; struct lpfc_dmabuf *pcmd, *prsp, *pbuflist; struct ulp_bde64 *bpl; IOCB_t *icmd; if (!lpfc_is_link_up(phba)) return NULL; /* Allocate buffer for command iocb */ elsiocb = lpfc_sli_get_iocbq(phba); if (elsiocb == NULL) return NULL; icmd = &elsiocb->iocb; /* fill in BDEs for command */ /* Allocate buffer for command payload */ if (((pcmd = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL)) == 0) || ((pcmd->virt = lpfc_mbuf_alloc(phba, MEM_PRI, &(pcmd->phys))) == 0)) { kfree(pcmd); lpfc_sli_release_iocbq(phba, elsiocb); return NULL; } INIT_LIST_HEAD(&pcmd->list); /* Allocate buffer for response payload */ if (expectRsp) { prsp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL); if (prsp) prsp->virt = lpfc_mbuf_alloc(phba, MEM_PRI, &prsp->phys); if (prsp == 0 || prsp->virt == 0) { kfree(prsp); lpfc_mbuf_free(phba, pcmd->virt, pcmd->phys); kfree(pcmd); lpfc_sli_release_iocbq(phba, elsiocb); return NULL; } INIT_LIST_HEAD(&prsp->list); } else { prsp = NULL; } /* Allocate buffer for Buffer ptr list */ pbuflist = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL); if (pbuflist) pbuflist->virt = lpfc_mbuf_alloc(phba, MEM_PRI, &pbuflist->phys); if (pbuflist == 0 || pbuflist->virt == 0) { lpfc_sli_release_iocbq(phba, elsiocb); lpfc_mbuf_free(phba, pcmd->virt, pcmd->phys); lpfc_mbuf_free(phba, prsp->virt, prsp->phys); kfree(pcmd); kfree(prsp); kfree(pbuflist); return NULL; } INIT_LIST_HEAD(&pbuflist->list); icmd->un.elsreq64.bdl.addrHigh = putPaddrHigh(pbuflist->phys); icmd->un.elsreq64.bdl.addrLow = putPaddrLow(pbuflist->phys); icmd->un.elsreq64.bdl.bdeFlags = BUFF_TYPE_BDL; icmd->un.elsreq64.remoteID = did; /* DID */ if (expectRsp) { icmd->un.elsreq64.bdl.bdeSize = (2 * sizeof(struct ulp_bde64)); icmd->ulpCommand = CMD_ELS_REQUEST64_CR; icmd->ulpTimeout = phba->fc_ratov * 2; } else { icmd->un.elsreq64.bdl.bdeSize = sizeof(struct ulp_bde64); icmd->ulpCommand = CMD_XMIT_ELS_RSP64_CX; } icmd->ulpBdeCount = 1; icmd->ulpLe = 1; icmd->ulpClass = CLASS3; if (phba->sli3_options & LPFC_SLI3_NPIV_ENABLED) { icmd->un.elsreq64.myID = vport->fc_myDID; /* For ELS_REQUEST64_CR, use the VPI by default */ icmd->ulpContext = vport->vpi; icmd->ulpCt_h = 0; icmd->ulpCt_l = 1; } bpl = (struct ulp_bde64 *) pbuflist->virt; bpl->addrLow = le32_to_cpu(putPaddrLow(pcmd->phys)); bpl->addrHigh = le32_to_cpu(putPaddrHigh(pcmd->phys)); bpl->tus.f.bdeSize = cmdSize; bpl->tus.f.bdeFlags = 0; bpl->tus.w = le32_to_cpu(bpl->tus.w); if (expectRsp) { bpl++; bpl->addrLow = le32_to_cpu(putPaddrLow(prsp->phys)); bpl->addrHigh = le32_to_cpu(putPaddrHigh(prsp->phys)); bpl->tus.f.bdeSize = FCELSSIZE; bpl->tus.f.bdeFlags = BUFF_USE_RCV; bpl->tus.w = le32_to_cpu(bpl->tus.w); } elsiocb->context1 = lpfc_nlp_get(ndlp); elsiocb->context2 = pcmd; elsiocb->context3 = pbuflist; elsiocb->retry = retry; elsiocb->vport = vport; elsiocb->drvrTimeout = (phba->fc_ratov << 1) + LPFC_DRVR_TIMEOUT; if (prsp) { list_add(&prsp->list, &pcmd->list); } if (expectRsp) { /* Xmit ELS command to remote NPORT */ lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, "0116 Xmit ELS command x%x to remote " "NPORT x%x I/O tag: x%x, port state: x%x\n", elscmd, did, elsiocb->iotag, vport->port_state); } else { /* Xmit ELS response to remote NPORT */ lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, "0117 Xmit ELS response x%x to remote " "NPORT x%x I/O tag: x%x, size: x%x\n", elscmd, ndlp->nlp_DID, elsiocb->iotag, cmdSize); } return elsiocb; } static int lpfc_issue_fabric_reglogin(struct lpfc_vport *vport) { struct lpfc_hba *phba = vport->phba; LPFC_MBOXQ_t *mbox; struct lpfc_dmabuf *mp; struct lpfc_nodelist *ndlp; struct serv_parm *sp; int rc; sp = &phba->fc_fabparam; ndlp = lpfc_findnode_did(vport, Fabric_DID); if (!ndlp) goto fail; mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); if (!mbox) goto fail; vport->port_state = LPFC_FABRIC_CFG_LINK; lpfc_config_link(phba, mbox); mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl; mbox->vport = vport; rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT); if (rc == MBX_NOT_FINISHED) goto fail_free_mbox; mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); if (!mbox) goto fail; rc = lpfc_reg_login(phba, vport->vpi, Fabric_DID, (uint8_t *)sp, mbox, 0); if (rc) goto fail_free_mbox; mbox->mbox_cmpl = lpfc_mbx_cmpl_fabric_reg_login; mbox->vport = vport; mbox->context2 = lpfc_nlp_get(ndlp); rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT); if (rc == MBX_NOT_FINISHED) goto fail_issue_reg_login; return 0; fail_issue_reg_login: lpfc_nlp_put(ndlp); mp = (struct lpfc_dmabuf *) mbox->context1; lpfc_mbuf_free(phba, mp->virt, mp->phys); kfree(mp); fail_free_mbox: mempool_free(mbox, phba->mbox_mem_pool); fail: lpfc_vport_set_state(vport, FC_VPORT_FAILED); lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS, "0249 Cannot issue Register Fabric login\n"); return -ENXIO; } static int lpfc_cmpl_els_flogi_fabric(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, struct serv_parm *sp, IOCB_t *irsp) { struct Scsi_Host *shost = lpfc_shost_from_vport(vport); struct lpfc_hba *phba = vport->phba; struct lpfc_nodelist *np; struct lpfc_nodelist *next_np; spin_lock_irq(shost->host_lock); vport->fc_flag |= FC_FABRIC; spin_unlock_irq(shost->host_lock); phba->fc_edtov = be32_to_cpu(sp->cmn.e_d_tov); if (sp->cmn.edtovResolution) /* E_D_TOV ticks are in nanoseconds */ phba->fc_edtov = (phba->fc_edtov + 999999) / 1000000; phba->fc_ratov = (be32_to_cpu(sp->cmn.w2.r_a_tov) + 999) / 1000; if (phba->fc_topology == TOPOLOGY_LOOP) { spin_lock_irq(shost->host_lock); vport->fc_flag |= FC_PUBLIC_LOOP; spin_unlock_irq(shost->host_lock); } else { /* * If we are a N-port connected to a Fabric, fixup sparam's so * logins to devices on remote loops work. */ vport->fc_sparam.cmn.altBbCredit = 1; } vport->fc_myDID = irsp->un.ulpWord[4] & Mask_DID; memcpy(&ndlp->nlp_portname, &sp->portName, sizeof(struct lpfc_name)); memcpy(&ndlp->nlp_nodename, &sp->nodeName, sizeof(struct lpfc_name)); ndlp->nlp_class_sup = 0; if (sp->cls1.classValid) ndlp->nlp_class_sup |= FC_COS_CLASS1; if (sp->cls2.classValid) ndlp->nlp_class_sup |= FC_COS_CLASS2; if (sp->cls3.classValid) ndlp->nlp_class_sup |= FC_COS_CLASS3; if (sp->cls4.classValid) ndlp->nlp_class_sup |= FC_COS_CLASS4; ndlp->nlp_maxframe = ((sp->cmn.bbRcvSizeMsb & 0x0F) << 8) | sp->cmn.bbRcvSizeLsb; memcpy(&phba->fc_fabparam, sp, sizeof(struct serv_parm)); if (phba->sli3_options & LPFC_SLI3_NPIV_ENABLED) { if (sp->cmn.response_multiple_NPort) { lpfc_printf_vlog(vport, KERN_WARNING, LOG_ELS | LOG_VPORT, "1816 FLOGI NPIV supported, " "response data 0x%x\n", sp->cmn.response_multiple_NPort); phba->link_flag |= LS_NPIV_FAB_SUPPORTED; } else { /* Because we asked f/w for NPIV it still expects us to call reg_vnpid atleast for the physcial host */ lpfc_printf_vlog(vport, KERN_WARNING, LOG_ELS | LOG_VPORT, "1817 Fabric does not support NPIV " "- configuring single port mode.\n"); phba->link_flag &= ~LS_NPIV_FAB_SUPPORTED; } } if ((vport->fc_prevDID != vport->fc_myDID) && !(vport->fc_flag & FC_VPORT_NEEDS_REG_VPI)) { /* If our NportID changed, we need to ensure all * remaining NPORTs get unreg_login'ed. */ list_for_each_entry_safe(np, next_np, &vport->fc_nodes, nlp_listp) { if ((np->nlp_state != NLP_STE_NPR_NODE) || !(np->nlp_flag & NLP_NPR_ADISC)) continue; spin_lock_irq(shost->host_lock); np->nlp_flag &= ~NLP_NPR_ADISC; spin_unlock_irq(shost->host_lock); lpfc_unreg_rpi(vport, np); } if (phba->sli3_options & LPFC_SLI3_NPIV_ENABLED) { lpfc_mbx_unreg_vpi(vport); vport->fc_flag |= FC_VPORT_NEEDS_REG_VPI; } } ndlp->nlp_sid = irsp->un.ulpWord[4] & Mask_DID; lpfc_nlp_set_state(vport, ndlp, NLP_STE_REG_LOGIN_ISSUE); if (phba->sli3_options & LPFC_SLI3_NPIV_ENABLED && vport->fc_flag & FC_VPORT_NEEDS_REG_VPI) { lpfc_register_new_vport(phba, vport, ndlp); return 0; } lpfc_issue_fabric_reglogin(vport); return 0; } /* * We FLOGIed into an NPort, initiate pt2pt protocol */ static int lpfc_cmpl_els_flogi_nport(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, struct serv_parm *sp) { struct Scsi_Host *shost = lpfc_shost_from_vport(vport); struct lpfc_hba *phba = vport->phba; LPFC_MBOXQ_t *mbox; int rc; spin_lock_irq(shost->host_lock); vport->fc_flag &= ~(FC_FABRIC | FC_PUBLIC_LOOP); spin_unlock_irq(shost->host_lock); phba->fc_edtov = FF_DEF_EDTOV; phba->fc_ratov = FF_DEF_RATOV; rc = memcmp(&vport->fc_portname, &sp->portName, sizeof(vport->fc_portname)); if (rc >= 0) { /* This side will initiate the PLOGI */ spin_lock_irq(shost->host_lock); vport->fc_flag |= FC_PT2PT_PLOGI; spin_unlock_irq(shost->host_lock); /* * N_Port ID cannot be 0, set our to LocalID the other * side will be RemoteID. */ /* not equal */ if (rc) vport->fc_myDID = PT2PT_LocalID; mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); if (!mbox) goto fail; lpfc_config_link(phba, mbox); mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl; mbox->vport = vport; rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT); if (rc == MBX_NOT_FINISHED) { mempool_free(mbox, phba->mbox_mem_pool); goto fail; } lpfc_nlp_put(ndlp); ndlp = lpfc_findnode_did(vport, PT2PT_RemoteID); if (!ndlp) { /* * Cannot find existing Fabric ndlp, so allocate a * new one */ ndlp = mempool_alloc(phba->nlp_mem_pool, GFP_KERNEL); if (!ndlp) goto fail; lpfc_nlp_init(vport, ndlp, PT2PT_RemoteID); } memcpy(&ndlp->nlp_portname, &sp->portName, sizeof(struct lpfc_name)); memcpy(&ndlp->nlp_nodename, &sp->nodeName, sizeof(struct lpfc_name)); lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); spin_lock_irq(shost->host_lock); ndlp->nlp_flag |= NLP_NPR_2B_DISC; spin_unlock_irq(shost->host_lock); } else { /* This side will wait for the PLOGI */ lpfc_nlp_put(ndlp); } spin_lock_irq(shost->host_lock); vport->fc_flag |= FC_PT2PT; spin_unlock_irq(shost->host_lock); /* Start discovery - this should just do CLEAR_LA */ lpfc_disc_start(vport); return 0; fail: return -ENXIO; } static void lpfc_cmpl_els_flogi(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb, struct lpfc_iocbq *rspiocb) { struct lpfc_vport *vport = cmdiocb->vport; struct Scsi_Host *shost = lpfc_shost_from_vport(vport); IOCB_t *irsp = &rspiocb->iocb; struct lpfc_nodelist *ndlp = cmdiocb->context1; struct lpfc_dmabuf *pcmd = cmdiocb->context2, *prsp; struct serv_parm *sp; int rc; /* Check to see if link went down during discovery */ if (lpfc_els_chk_latt(vport)) { lpfc_nlp_put(ndlp); goto out; } lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, "FLOGI cmpl: status:x%x/x%x state:x%x", irsp->ulpStatus, irsp->un.ulpWord[4], vport->port_state); if (irsp->ulpStatus) { /* Check for retry */ if (lpfc_els_retry(phba, cmdiocb, rspiocb)) goto out; /* FLOGI failed, so there is no fabric */ spin_lock_irq(shost->host_lock); vport->fc_flag &= ~(FC_FABRIC | FC_PUBLIC_LOOP); spin_unlock_irq(shost->host_lock); /* If private loop, then allow max outstanding els to be * LPFC_MAX_DISC_THREADS (32). Scanning in the case of no * alpa map would take too long otherwise. */ if (phba->alpa_map[0] == 0) { vport->cfg_discovery_threads = LPFC_MAX_DISC_THREADS; } /* FLOGI failure */ lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, "0100 FLOGI failure Data: x%x x%x " "x%x\n", irsp->ulpStatus, irsp->un.ulpWord[4], irsp->ulpTimeout); goto flogifail; } /* * The FLogI succeeded. Sync the data for the CPU before * accessing it. */ prsp = list_get_first(&pcmd->list, struct lpfc_dmabuf, list); sp = prsp->virt + sizeof(uint32_t); /* FLOGI completes successfully */ lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, "0101 FLOGI completes sucessfully " "Data: x%x x%x x%x x%x\n", irsp->un.ulpWord[4], sp->cmn.e_d_tov, sp->cmn.w2.r_a_tov, sp->cmn.edtovResolution); if (vport->port_state == LPFC_FLOGI) { /* * If Common Service Parameters indicate Nport * we are point to point, if Fport we are Fabric. */ if (sp->cmn.fPort) rc = lpfc_cmpl_els_flogi_fabric(vport, ndlp, sp, irsp); else rc = lpfc_cmpl_els_flogi_nport(vport, ndlp, sp); if (!rc) goto out; } flogifail: lpfc_nlp_put(ndlp); if (!lpfc_error_lost_link(irsp)) { /* FLOGI failed, so just use loop map to make discovery list */ lpfc_disc_list_loopmap(vport); /* Start discovery */ lpfc_disc_start(vport); } out: lpfc_els_free_iocb(phba, cmdiocb); } static int lpfc_issue_els_flogi(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, uint8_t retry) { struct lpfc_hba *phba = vport->phba; struct serv_parm *sp; IOCB_t *icmd; struct lpfc_iocbq *elsiocb; struct lpfc_sli_ring *pring; uint8_t *pcmd; uint16_t cmdsize; uint32_t tmo; int rc; pring = &phba->sli.ring[LPFC_ELS_RING]; cmdsize = (sizeof(uint32_t) + sizeof(struct serv_parm)); elsiocb = lpfc_prep_els_iocb(vport, 1, cmdsize, retry, ndlp, ndlp->nlp_DID, ELS_CMD_FLOGI); if (!elsiocb) return 1; icmd = &elsiocb->iocb; pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt); /* For FLOGI request, remainder of payload is service parameters */ *((uint32_t *) (pcmd)) = ELS_CMD_FLOGI; pcmd += sizeof(uint32_t); memcpy(pcmd, &vport->fc_sparam, sizeof(struct serv_parm)); sp = (struct serv_parm *) pcmd; /* Setup CSPs accordingly for Fabric */ sp->cmn.e_d_tov = 0; sp->cmn.w2.r_a_tov = 0; sp->cls1.classValid = 0; sp->cls2.seqDelivery = 1; sp->cls3.seqDelivery = 1; if (sp->cmn.fcphLow < FC_PH3) sp->cmn.fcphLow = FC_PH3; if (sp->cmn.fcphHigh < FC_PH3) sp->cmn.fcphHigh = FC_PH3; if (phba->sli3_options & LPFC_SLI3_NPIV_ENABLED) { sp->cmn.request_multiple_Nport = 1; /* For FLOGI, Let FLOGI rsp set the NPortID for VPI 0 */ icmd->ulpCt_h = 1; icmd->ulpCt_l = 0; } if (phba->fc_topology != TOPOLOGY_LOOP) { icmd->un.elsreq64.myID = 0; icmd->un.elsreq64.fl = 1; } tmo = phba->fc_ratov; phba->fc_ratov = LPFC_DISC_FLOGI_TMO; lpfc_set_disctmo(vport); phba->fc_ratov = tmo; phba->fc_stat.elsXmitFLOGI++; elsiocb->iocb_cmpl = lpfc_cmpl_els_flogi; lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, "Issue FLOGI: opt:x%x", phba->sli3_options, 0, 0); rc = lpfc_issue_fabric_iocb(phba, elsiocb); if (rc == IOCB_ERROR) { lpfc_els_free_iocb(phba, elsiocb); return 1; } return 0; } int lpfc_els_abort_flogi(struct lpfc_hba *phba) { struct lpfc_sli_ring *pring; struct lpfc_iocbq *iocb, *next_iocb; struct lpfc_nodelist *ndlp; IOCB_t *icmd; /* Abort outstanding I/O on NPort */ lpfc_printf_log(phba, KERN_INFO, LOG_DISCOVERY, "0201 Abort outstanding I/O on NPort x%x\n", Fabric_DID); pring = &phba->sli.ring[LPFC_ELS_RING]; /* * Check the txcmplq for an iocb that matches the nport the driver is * searching for. */ spin_lock_irq(&phba->hbalock); list_for_each_entry_safe(iocb, next_iocb, &pring->txcmplq, list) { icmd = &iocb->iocb; if (icmd->ulpCommand == CMD_ELS_REQUEST64_CR && icmd->un.elsreq64.bdl.ulpIoTag32) { ndlp = (struct lpfc_nodelist *)(iocb->context1); if (ndlp && (ndlp->nlp_DID == Fabric_DID)) { lpfc_sli_issue_abort_iotag(phba, pring, iocb); } } } spin_unlock_irq(&phba->hbalock); return 0; } int lpfc_initial_flogi(struct lpfc_vport *vport) { struct lpfc_hba *phba = vport->phba; struct lpfc_nodelist *ndlp; /* First look for the Fabric ndlp */ ndlp = lpfc_findnode_did(vport, Fabric_DID); if (!ndlp) { /* Cannot find existing Fabric ndlp, so allocate a new one */ ndlp = mempool_alloc(phba->nlp_mem_pool, GFP_KERNEL); if (!ndlp) return 0; lpfc_nlp_init(vport, ndlp, Fabric_DID); } else { lpfc_dequeue_node(vport, ndlp); } if (lpfc_issue_els_flogi(vport, ndlp, 0)) { lpfc_nlp_put(ndlp); } return 1; } int lpfc_initial_fdisc(struct lpfc_vport *vport) { struct lpfc_hba *phba = vport->phba; struct lpfc_nodelist *ndlp; /* First look for the Fabric ndlp */ ndlp = lpfc_findnode_did(vport, Fabric_DID); if (!ndlp) { /* Cannot find existing Fabric ndlp, so allocate a new one */ ndlp = mempool_alloc(phba->nlp_mem_pool, GFP_KERNEL); if (!ndlp) return 0; lpfc_nlp_init(vport, ndlp, Fabric_DID); } else { lpfc_dequeue_node(vport, ndlp); } if (lpfc_issue_els_fdisc(vport, ndlp, 0)) { lpfc_nlp_put(ndlp); } return 1; } static void lpfc_more_plogi(struct lpfc_vport *vport) { int sentplogi; if (vport->num_disc_nodes) vport->num_disc_nodes--; /* Continue discovery with PLOGIs to go */ lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, "0232 Continue discovery with %d PLOGIs to go " "Data: x%x x%x x%x\n", vport->num_disc_nodes, vport->fc_plogi_cnt, vport->fc_flag, vport->port_state); /* Check to see if there are more PLOGIs to be sent */ if (vport->fc_flag & FC_NLP_MORE) /* go thru NPR nodes and issue any remaining ELS PLOGIs */ sentplogi = lpfc_els_disc_plogi(vport); return; } static struct lpfc_nodelist * lpfc_plogi_confirm_nport(struct lpfc_hba *phba, uint32_t *prsp, struct lpfc_nodelist *ndlp) { struct lpfc_vport *vport = ndlp->vport; struct lpfc_nodelist *new_ndlp; struct serv_parm *sp; uint8_t name[sizeof(struct lpfc_name)]; uint32_t rc; /* Fabric nodes can have the same WWPN so we don't bother searching * by WWPN. Just return the ndlp that was given to us. */ if (ndlp->nlp_type & NLP_FABRIC) return ndlp; sp = (struct serv_parm *) ((uint8_t *) prsp + sizeof(uint32_t)); memset(name, 0, sizeof(struct lpfc_name)); /* Now we find out if the NPort we are logging into, matches the WWPN * we have for that ndlp. If not, we have some work to do. */ new_ndlp = lpfc_findnode_wwpn(vport, &sp->portName); if (new_ndlp == ndlp) return ndlp; if (!new_ndlp) { rc = memcmp(&ndlp->nlp_portname, name, sizeof(struct lpfc_name)); if (!rc) return ndlp; new_ndlp = mempool_alloc(phba->nlp_mem_pool, GFP_ATOMIC); if (!new_ndlp) return ndlp; lpfc_nlp_init(vport, new_ndlp, ndlp->nlp_DID); } lpfc_unreg_rpi(vport, new_ndlp); new_ndlp->nlp_DID = ndlp->nlp_DID; new_ndlp->nlp_prev_state = ndlp->nlp_prev_state; lpfc_nlp_set_state(vport, new_ndlp, ndlp->nlp_state); /* Move this back to NPR state */ if (memcmp(&ndlp->nlp_portname, name, sizeof(struct lpfc_name)) == 0) lpfc_drop_node(vport, ndlp); else { lpfc_unreg_rpi(vport, ndlp); ndlp->nlp_DID = 0; /* Two ndlps cannot have the same did */ lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); } return new_ndlp; } static void lpfc_cmpl_els_plogi(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb, struct lpfc_iocbq *rspiocb) { struct lpfc_vport *vport = cmdiocb->vport; struct Scsi_Host *shost = lpfc_shost_from_vport(vport); IOCB_t *irsp; struct lpfc_nodelist *ndlp; struct lpfc_dmabuf *prsp; int disc, rc, did, type; /* we pass cmdiocb to state machine which needs rspiocb as well */ cmdiocb->context_un.rsp_iocb = rspiocb; irsp = &rspiocb->iocb; lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, "PLOGI cmpl: status:x%x/x%x did:x%x", irsp->ulpStatus, irsp->un.ulpWord[4], irsp->un.elsreq64.remoteID); ndlp = lpfc_findnode_did(vport, irsp->un.elsreq64.remoteID); if (!ndlp) { lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS, "0136 PLOGI completes to NPort x%x " "with no ndlp. Data: x%x x%x x%x\n", irsp->un.elsreq64.remoteID, irsp->ulpStatus, irsp->un.ulpWord[4], irsp->ulpIoTag); goto out; } /* Since ndlp can be freed in the disc state machine, note if this node * is being used during discovery. */ spin_lock_irq(shost->host_lock); disc = (ndlp->nlp_flag & NLP_NPR_2B_DISC); ndlp->nlp_flag &= ~NLP_NPR_2B_DISC; spin_unlock_irq(shost->host_lock); rc = 0; /* PLOGI completes to NPort */ lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, "0102 PLOGI completes to NPort x%x " "Data: x%x x%x x%x x%x x%x\n", ndlp->nlp_DID, irsp->ulpStatus, irsp->un.ulpWord[4], irsp->ulpTimeout, disc, vport->num_disc_nodes); /* Check to see if link went down during discovery */ if (lpfc_els_chk_latt(vport)) { spin_lock_irq(shost->host_lock); ndlp->nlp_flag |= NLP_NPR_2B_DISC; spin_unlock_irq(shost->host_lock); goto out; } /* ndlp could be freed in DSM, save these values now */ type = ndlp->nlp_type; did = ndlp->nlp_DID; if (irsp->ulpStatus) { /* Check for retry */ if (lpfc_els_retry(phba, cmdiocb, rspiocb)) { /* ELS command is being retried */ if (disc) { spin_lock_irq(shost->host_lock); ndlp->nlp_flag |= NLP_NPR_2B_DISC; spin_unlock_irq(shost->host_lock); } goto out; } /* PLOGI failed */ if (ndlp->nlp_DID == NameServer_DID) { lpfc_vport_set_state(vport, FC_VPORT_FAILED); lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS, "0250 Nameserver login error: " "0x%x / 0x%x\n", irsp->ulpStatus, irsp->un.ulpWord[4]); } /* Do not call DSM for lpfc_els_abort'ed ELS cmds */ if (lpfc_error_lost_link(irsp)) { rc = NLP_STE_FREED_NODE; } else { rc = lpfc_disc_state_machine(vport, ndlp, cmdiocb, NLP_EVT_CMPL_PLOGI); } } else { /* Good status, call state machine */ prsp = list_entry(((struct lpfc_dmabuf *) cmdiocb->context2)->list.next, struct lpfc_dmabuf, list); ndlp = lpfc_plogi_confirm_nport(phba, prsp->virt, ndlp); rc = lpfc_disc_state_machine(vport, ndlp, cmdiocb, NLP_EVT_CMPL_PLOGI); } if (disc && vport->num_disc_nodes) { /* Check to see if there are more PLOGIs to be sent */ lpfc_more_plogi(vport); if (vport->num_disc_nodes == 0) { spin_lock_irq(shost->host_lock); vport->fc_flag &= ~FC_NDISC_ACTIVE; spin_unlock_irq(shost->host_lock); lpfc_can_disctmo(vport); if (vport->fc_flag & FC_RSCN_MODE) { /* * Check to see if more RSCNs came in while * we were processing this one. */ if ((vport->fc_rscn_id_cnt == 0) && (!(vport->fc_flag & FC_RSCN_DISCOVERY))) { spin_lock_irq(shost->host_lock); vport->fc_flag &= ~FC_RSCN_MODE; spin_unlock_irq(shost->host_lock); } else { lpfc_els_handle_rscn(vport); } } } } out: lpfc_els_free_iocb(phba, cmdiocb); return; } int lpfc_issue_els_plogi(struct lpfc_vport *vport, uint32_t did, uint8_t retry) { struct lpfc_hba *phba = vport->phba; struct serv_parm *sp; IOCB_t *icmd; struct lpfc_iocbq *elsiocb; struct lpfc_sli_ring *pring; struct lpfc_sli *psli; uint8_t *pcmd; uint16_t cmdsize; int ret; psli = &phba->sli; pring = &psli->ring[LPFC_ELS_RING]; /* ELS ring */ cmdsize = (sizeof(uint32_t) + sizeof(struct serv_parm)); elsiocb = lpfc_prep_els_iocb(vport, 1, cmdsize, retry, NULL, did, ELS_CMD_PLOGI); if (!elsiocb) return 1; icmd = &elsiocb->iocb; pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt); /* For PLOGI request, remainder of payload is service parameters */ *((uint32_t *) (pcmd)) = ELS_CMD_PLOGI; pcmd += sizeof(uint32_t); memcpy(pcmd, &vport->fc_sparam, sizeof(struct serv_parm)); sp = (struct serv_parm *) pcmd; if (sp->cmn.fcphLow < FC_PH_4_3) sp->cmn.fcphLow = FC_PH_4_3; if (sp->cmn.fcphHigh < FC_PH3) sp->cmn.fcphHigh = FC_PH3; lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, "Issue PLOGI: did:x%x", did, 0, 0); phba->fc_stat.elsXmitPLOGI++; elsiocb->iocb_cmpl = lpfc_cmpl_els_plogi; ret = lpfc_sli_issue_iocb(phba, pring, elsiocb, 0); if (ret == IOCB_ERROR) { lpfc_els_free_iocb(phba, elsiocb); return 1; } return 0; } static void lpfc_cmpl_els_prli(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb, struct lpfc_iocbq *rspiocb) { struct lpfc_vport *vport = cmdiocb->vport; struct Scsi_Host *shost = lpfc_shost_from_vport(vport); IOCB_t *irsp; struct lpfc_sli *psli; struct lpfc_nodelist *ndlp; psli = &phba->sli; /* we pass cmdiocb to state machine which needs rspiocb as well */ cmdiocb->context_un.rsp_iocb = rspiocb; irsp = &(rspiocb->iocb); ndlp = (struct lpfc_nodelist *) cmdiocb->context1; spin_lock_irq(shost->host_lock); ndlp->nlp_flag &= ~NLP_PRLI_SND; spin_unlock_irq(shost->host_lock); lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, "PRLI cmpl: status:x%x/x%x did:x%x", irsp->ulpStatus, irsp->un.ulpWord[4], ndlp->nlp_DID); /* PRLI completes to NPort */ lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, "0103 PRLI completes to NPort x%x " "Data: x%x x%x x%x x%x\n", ndlp->nlp_DID, irsp->ulpStatus, irsp->un.ulpWord[4], irsp->ulpTimeout, vport->num_disc_nodes); vport->fc_prli_sent--; /* Check to see if link went down during discovery */ if (lpfc_els_chk_latt(vport)) goto out; if (irsp->ulpStatus) { /* Check for retry */ if (lpfc_els_retry(phba, cmdiocb, rspiocb)) { /* ELS command is being retried */ goto out; } /* PRLI failed */ /* Do not call DSM for lpfc_els_abort'ed ELS cmds */ if (lpfc_error_lost_link(irsp)) { goto out; } else { lpfc_disc_state_machine(vport, ndlp, cmdiocb, NLP_EVT_CMPL_PRLI); } } else { /* Good status, call state machine */ lpfc_disc_state_machine(vport, ndlp, cmdiocb, NLP_EVT_CMPL_PRLI); } out: lpfc_els_free_iocb(phba, cmdiocb); return; } int lpfc_issue_els_prli(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, uint8_t retry) { struct Scsi_Host *shost = lpfc_shost_from_vport(vport); struct lpfc_hba *phba = vport->phba; PRLI *npr; IOCB_t *icmd; struct lpfc_iocbq *elsiocb; struct lpfc_sli_ring *pring; struct lpfc_sli *psli; uint8_t *pcmd; uint16_t cmdsize; psli = &phba->sli; pring = &psli->ring[LPFC_ELS_RING]; /* ELS ring */ cmdsize = (sizeof(uint32_t) + sizeof(PRLI)); elsiocb = lpfc_prep_els_iocb(vport, 1, cmdsize, retry, ndlp, ndlp->nlp_DID, ELS_CMD_PRLI); if (!elsiocb) return 1; icmd = &elsiocb->iocb; pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt); /* For PRLI request, remainder of payload is service parameters */ memset(pcmd, 0, (sizeof(PRLI) + sizeof(uint32_t))); *((uint32_t *) (pcmd)) = ELS_CMD_PRLI; pcmd += sizeof(uint32_t); /* For PRLI, remainder of payload is PRLI parameter page */ npr = (PRLI *) pcmd; /* * If our firmware version is 3.20 or later, * set the following bits for FC-TAPE support. */ if (phba->vpd.rev.feaLevelHigh >= 0x02) { npr->ConfmComplAllowed = 1; npr->Retry = 1; npr->TaskRetryIdReq = 1; } npr->estabImagePair = 1; npr->readXferRdyDis = 1; /* For FCP support */ npr->prliType = PRLI_FCP_TYPE; npr->initiatorFunc = 1; lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, "Issue PRLI: did:x%x", ndlp->nlp_DID, 0, 0); phba->fc_stat.elsXmitPRLI++; elsiocb->iocb_cmpl = lpfc_cmpl_els_prli; spin_lock_irq(shost->host_lock); ndlp->nlp_flag |= NLP_PRLI_SND; spin_unlock_irq(shost->host_lock); if (lpfc_sli_issue_iocb(phba, pring, elsiocb, 0) == IOCB_ERROR) { spin_lock_irq(shost->host_lock); ndlp->nlp_flag &= ~NLP_PRLI_SND; spin_unlock_irq(shost->host_lock); lpfc_els_free_iocb(phba, elsiocb); return 1; } vport->fc_prli_sent++; return 0; } static void lpfc_more_adisc(struct lpfc_vport *vport) { int sentadisc; if (vport->num_disc_nodes) vport->num_disc_nodes--; /* Continue discovery with ADISCs to go */ lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, "0210 Continue discovery with %d ADISCs to go " "Data: x%x x%x x%x\n", vport->num_disc_nodes, vport->fc_adisc_cnt, vport->fc_flag, vport->port_state); /* Check to see if there are more ADISCs to be sent */ if (vport->fc_flag & FC_NLP_MORE) { lpfc_set_disctmo(vport); /* go thru NPR nodes and issue any remaining ELS ADISCs */ sentadisc = lpfc_els_disc_adisc(vport); } return; } static void lpfc_rscn_disc(struct lpfc_vport *vport) { struct Scsi_Host *shost = lpfc_shost_from_vport(vport); lpfc_can_disctmo(vport); /* RSCN discovery */ /* go thru NPR nodes and issue ELS PLOGIs */ if (vport->fc_npr_cnt) if (lpfc_els_disc_plogi(vport)) return; if (vport->fc_flag & FC_RSCN_MODE) { /* Check to see if more RSCNs came in while we were * processing this one. */ if ((vport->fc_rscn_id_cnt == 0) && (!(vport->fc_flag & FC_RSCN_DISCOVERY))) { spin_lock_irq(shost->host_lock); vport->fc_flag &= ~FC_RSCN_MODE; spin_unlock_irq(shost->host_lock); } else { lpfc_els_handle_rscn(vport); } } } static void lpfc_cmpl_els_adisc(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb, struct lpfc_iocbq *rspiocb) { struct lpfc_vport *vport = cmdiocb->vport; struct Scsi_Host *shost = lpfc_shost_from_vport(vport); IOCB_t *irsp; struct lpfc_nodelist *ndlp; int disc; /* we pass cmdiocb to state machine which needs rspiocb as well */ cmdiocb->context_un.rsp_iocb = rspiocb; irsp = &(rspiocb->iocb); ndlp = (struct lpfc_nodelist *) cmdiocb->context1; lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, "ADISC cmpl: status:x%x/x%x did:x%x", irsp->ulpStatus, irsp->un.ulpWord[4], ndlp->nlp_DID); /* Since ndlp can be freed in the disc state machine, note if this node * is being used during discovery. */ spin_lock_irq(shost->host_lock); disc = (ndlp->nlp_flag & NLP_NPR_2B_DISC); ndlp->nlp_flag &= ~(NLP_ADISC_SND | NLP_NPR_2B_DISC); spin_unlock_irq(shost->host_lock); /* ADISC completes to NPort */ lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, "0104 ADISC completes to NPort x%x " "Data: x%x x%x x%x x%x x%x\n", ndlp->nlp_DID, irsp->ulpStatus, irsp->un.ulpWord[4], irsp->ulpTimeout, disc, vport->num_disc_nodes); /* Check to see if link went down during discovery */ if (lpfc_els_chk_latt(vport)) { spin_lock_irq(shost->host_lock); ndlp->nlp_flag |= NLP_NPR_2B_DISC; spin_unlock_irq(shost->host_lock); goto out; } if (irsp->ulpStatus) { /* Check for retry */ if (lpfc_els_retry(phba, cmdiocb, rspiocb)) { /* ELS command is being retried */ if (disc) { spin_lock_irq(shost->host_lock); ndlp->nlp_flag |= NLP_NPR_2B_DISC; spin_unlock_irq(shost->host_lock); lpfc_set_disctmo(vport); } goto out; } /* ADISC failed */ /* Do not call DSM for lpfc_els_abort'ed ELS cmds */ if (!lpfc_error_lost_link(irsp)) { lpfc_disc_state_machine(vport, ndlp, cmdiocb, NLP_EVT_CMPL_ADISC); } } else { /* Good status, call state machine */ lpfc_disc_state_machine(vport, ndlp, cmdiocb, NLP_EVT_CMPL_ADISC); } if (disc && vport->num_disc_nodes) { /* Check to see if there are more ADISCs to be sent */ lpfc_more_adisc(vport); /* Check to see if we are done with ADISC authentication */ if (vport->num_disc_nodes == 0) { /* If we get here, there is nothing left to ADISC */ /* * For NPIV, cmpl_reg_vpi will set port_state to READY, * and continue discovery. */ if ((phba->sli3_options & LPFC_SLI3_NPIV_ENABLED) && !(vport->fc_flag & FC_RSCN_MODE)) { lpfc_issue_reg_vpi(phba, vport); goto out; } /* * For SLI2, we need to set port_state to READY * and continue discovery. */ if (vport->port_state < LPFC_VPORT_READY) { /* If we get here, there is nothing to ADISC */ if (vport->port_type == LPFC_PHYSICAL_PORT) lpfc_issue_clear_la(phba, vport); if (!(vport->fc_flag & FC_ABORT_DISCOVERY)) { vport->num_disc_nodes = 0; /* go thru NPR list, issue ELS PLOGIs */ if (vport->fc_npr_cnt) lpfc_els_disc_plogi(vport); if (!vport->num_disc_nodes) { spin_lock_irq(shost->host_lock); vport->fc_flag &= ~FC_NDISC_ACTIVE; spin_unlock_irq( shost->host_lock); lpfc_can_disctmo(vport); } } vport->port_state = LPFC_VPORT_READY; } else { lpfc_rscn_disc(vport); } } } out: lpfc_els_free_iocb(phba, cmdiocb); return; } int lpfc_issue_els_adisc(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, uint8_t retry) { struct Scsi_Host *shost = lpfc_shost_from_vport(vport); struct lpfc_hba *phba = vport->phba; ADISC *ap; IOCB_t *icmd; struct lpfc_iocbq *elsiocb; struct lpfc_sli *psli = &phba->sli; struct lpfc_sli_ring *pring = &psli->ring[LPFC_ELS_RING]; uint8_t *pcmd; uint16_t cmdsize; cmdsize = (sizeof(uint32_t) + sizeof(ADISC)); elsiocb = lpfc_prep_els_iocb(vport, 1, cmdsize, retry, ndlp, ndlp->nlp_DID, ELS_CMD_ADISC); if (!elsiocb) return 1; icmd = &elsiocb->iocb; pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt); /* For ADISC request, remainder of payload is service parameters */ *((uint32_t *) (pcmd)) = ELS_CMD_ADISC; pcmd += sizeof(uint32_t); /* Fill in ADISC payload */ ap = (ADISC *) pcmd; ap->hardAL_PA = phba->fc_pref_ALPA; memcpy(&ap->portName, &vport->fc_portname, sizeof(struct lpfc_name)); memcpy(&ap->nodeName, &vport->fc_nodename, sizeof(struct lpfc_name)); ap->DID = be32_to_cpu(vport->fc_myDID); lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, "Issue ADISC: did:x%x", ndlp->nlp_DID, 0, 0); phba->fc_stat.elsXmitADISC++; elsiocb->iocb_cmpl = lpfc_cmpl_els_adisc; spin_lock_irq(shost->host_lock); ndlp->nlp_flag |= NLP_ADISC_SND; spin_unlock_irq(shost->host_lock); if (lpfc_sli_issue_iocb(phba, pring, elsiocb, 0) == IOCB_ERROR) { spin_lock_irq(shost->host_lock); ndlp->nlp_flag &= ~NLP_ADISC_SND; spin_unlock_irq(shost->host_lock); lpfc_els_free_iocb(phba, elsiocb); return 1; } return 0; } static void lpfc_cmpl_els_logo(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb, struct lpfc_iocbq *rspiocb) { struct lpfc_nodelist *ndlp = (struct lpfc_nodelist *) cmdiocb->context1; struct lpfc_vport *vport = ndlp->vport; struct Scsi_Host *shost = lpfc_shost_from_vport(vport); IOCB_t *irsp; struct lpfc_sli *psli; psli = &phba->sli; /* we pass cmdiocb to state machine which needs rspiocb as well */ cmdiocb->context_un.rsp_iocb = rspiocb; irsp = &(rspiocb->iocb); spin_lock_irq(shost->host_lock); ndlp->nlp_flag &= ~NLP_LOGO_SND; spin_unlock_irq(shost->host_lock); lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, "LOGO cmpl: status:x%x/x%x did:x%x", irsp->ulpStatus, irsp->un.ulpWord[4], ndlp->nlp_DID); /* LOGO completes to NPort */ lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, "0105 LOGO completes to NPort x%x " "Data: x%x x%x x%x x%x\n", ndlp->nlp_DID, irsp->ulpStatus, irsp->un.ulpWord[4], irsp->ulpTimeout, vport->num_disc_nodes); /* Check to see if link went down during discovery */ if (lpfc_els_chk_latt(vport)) goto out; if (ndlp->nlp_flag & NLP_TARGET_REMOVE) { /* NLP_EVT_DEVICE_RM should unregister the RPI * which should abort all outstanding IOs. */ lpfc_disc_state_machine(vport, ndlp, cmdiocb, NLP_EVT_DEVICE_RM); goto out; } if (irsp->ulpStatus) { /* Check for retry */ if (lpfc_els_retry(phba, cmdiocb, rspiocb)) /* ELS command is being retried */ goto out; /* LOGO failed */ /* Do not call DSM for lpfc_els_abort'ed ELS cmds */ if (lpfc_error_lost_link(irsp)) goto out; else lpfc_disc_state_machine(vport, ndlp, cmdiocb, NLP_EVT_CMPL_LOGO); } else { /* Good status, call state machine. * This will unregister the rpi if needed. */ lpfc_disc_state_machine(vport, ndlp, cmdiocb, NLP_EVT_CMPL_LOGO); } out: lpfc_els_free_iocb(phba, cmdiocb); return; } int lpfc_issue_els_logo(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, uint8_t retry) { struct Scsi_Host *shost = lpfc_shost_from_vport(vport); struct lpfc_hba *phba = vport->phba; IOCB_t *icmd; struct lpfc_iocbq *elsiocb; struct lpfc_sli_ring *pring; struct lpfc_sli *psli; uint8_t *pcmd; uint16_t cmdsize; int rc; psli = &phba->sli; pring = &psli->ring[LPFC_ELS_RING]; cmdsize = (2 * sizeof(uint32_t)) + sizeof(struct lpfc_name); elsiocb = lpfc_prep_els_iocb(vport, 1, cmdsize, retry, ndlp, ndlp->nlp_DID, ELS_CMD_LOGO); if (!elsiocb) return 1; icmd = &elsiocb->iocb; pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt); *((uint32_t *) (pcmd)) = ELS_CMD_LOGO; pcmd += sizeof(uint32_t); /* Fill in LOGO payload */ *((uint32_t *) (pcmd)) = be32_to_cpu(vport->fc_myDID); pcmd += sizeof(uint32_t); memcpy(pcmd, &vport->fc_portname, sizeof(struct lpfc_name)); lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, "Issue LOGO: did:x%x", ndlp->nlp_DID, 0, 0); phba->fc_stat.elsXmitLOGO++; elsiocb->iocb_cmpl = lpfc_cmpl_els_logo; spin_lock_irq(shost->host_lock); ndlp->nlp_flag |= NLP_LOGO_SND; spin_unlock_irq(shost->host_lock); rc = lpfc_sli_issue_iocb(phba, pring, elsiocb, 0); if (rc == IOCB_ERROR) { spin_lock_irq(shost->host_lock); ndlp->nlp_flag &= ~NLP_LOGO_SND; spin_unlock_irq(shost->host_lock); lpfc_els_free_iocb(phba, elsiocb); return 1; } return 0; } static void lpfc_cmpl_els_cmd(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb, struct lpfc_iocbq *rspiocb) { struct lpfc_vport *vport = cmdiocb->vport; IOCB_t *irsp; irsp = &rspiocb->iocb; lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, "ELS cmd cmpl: status:x%x/x%x did:x%x", irsp->ulpStatus, irsp->un.ulpWord[4], irsp->un.elsreq64.remoteID); /* ELS cmd tag completes */ lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, "0106 ELS cmd tag x%x completes Data: x%x x%x x%x\n", irsp->ulpIoTag, irsp->ulpStatus, irsp->un.ulpWord[4], irsp->ulpTimeout); /* Check to see if link went down during discovery */ lpfc_els_chk_latt(vport); lpfc_els_free_iocb(phba, cmdiocb); return; } int lpfc_issue_els_scr(struct lpfc_vport *vport, uint32_t nportid, uint8_t retry) { struct lpfc_hba *phba = vport->phba; IOCB_t *icmd; struct lpfc_iocbq *elsiocb; struct lpfc_sli_ring *pring; struct lpfc_sli *psli; uint8_t *pcmd; uint16_t cmdsize; struct lpfc_nodelist *ndlp; psli = &phba->sli; pring = &psli->ring[LPFC_ELS_RING]; /* ELS ring */ cmdsize = (sizeof(uint32_t) + sizeof(SCR)); ndlp = mempool_alloc(phba->nlp_mem_pool, GFP_KERNEL); if (!ndlp) return 1; lpfc_nlp_init(vport, ndlp, nportid); elsiocb = lpfc_prep_els_iocb(vport, 1, cmdsize, retry, ndlp, ndlp->nlp_DID, ELS_CMD_SCR); if (!elsiocb) { lpfc_nlp_put(ndlp); return 1; } icmd = &elsiocb->iocb; pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt); *((uint32_t *) (pcmd)) = ELS_CMD_SCR; pcmd += sizeof(uint32_t); /* For SCR, remainder of payload is SCR parameter page */ memset(pcmd, 0, sizeof(SCR)); ((SCR *) pcmd)->Function = SCR_FUNC_FULL; lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, "Issue SCR: did:x%x", ndlp->nlp_DID, 0, 0); phba->fc_stat.elsXmitSCR++; elsiocb->iocb_cmpl = lpfc_cmpl_els_cmd; if (lpfc_sli_issue_iocb(phba, pring, elsiocb, 0) == IOCB_ERROR) { lpfc_nlp_put(ndlp); lpfc_els_free_iocb(phba, elsiocb); return 1; } lpfc_nlp_put(ndlp); return 0; } static int lpfc_issue_els_farpr(struct lpfc_vport *vport, uint32_t nportid, uint8_t retry) { struct lpfc_hba *phba = vport->phba; IOCB_t *icmd; struct lpfc_iocbq *elsiocb; struct lpfc_sli_ring *pring; struct lpfc_sli *psli; FARP *fp; uint8_t *pcmd; uint32_t *lp; uint16_t cmdsize; struct lpfc_nodelist *ondlp; struct lpfc_nodelist *ndlp; psli = &phba->sli; pring = &psli->ring[LPFC_ELS_RING]; /* ELS ring */ cmdsize = (sizeof(uint32_t) + sizeof(FARP)); ndlp = mempool_alloc(phba->nlp_mem_pool, GFP_KERNEL); if (!ndlp) return 1; lpfc_nlp_init(vport, ndlp, nportid); elsiocb = lpfc_prep_els_iocb(vport, 1, cmdsize, retry, ndlp, ndlp->nlp_DID, ELS_CMD_RNID); if (!elsiocb) { lpfc_nlp_put(ndlp); return 1; } icmd = &elsiocb->iocb; pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt); *((uint32_t *) (pcmd)) = ELS_CMD_FARPR; pcmd += sizeof(uint32_t); /* Fill in FARPR payload */ fp = (FARP *) (pcmd); memset(fp, 0, sizeof(FARP)); lp = (uint32_t *) pcmd; *lp++ = be32_to_cpu(nportid); *lp++ = be32_to_cpu(vport->fc_myDID); fp->Rflags = 0; fp->Mflags = (FARP_MATCH_PORT | FARP_MATCH_NODE); memcpy(&fp->RportName, &vport->fc_portname, sizeof(struct lpfc_name)); memcpy(&fp->RnodeName, &vport->fc_nodename, sizeof(struct lpfc_name)); ondlp = lpfc_findnode_did(vport, nportid); if (ondlp) { memcpy(&fp->OportName, &ondlp->nlp_portname, sizeof(struct lpfc_name)); memcpy(&fp->OnodeName, &ondlp->nlp_nodename, sizeof(struct lpfc_name)); } lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, "Issue FARPR: did:x%x", ndlp->nlp_DID, 0, 0); phba->fc_stat.elsXmitFARPR++; elsiocb->iocb_cmpl = lpfc_cmpl_els_cmd; if (lpfc_sli_issue_iocb(phba, pring, elsiocb, 0) == IOCB_ERROR) { lpfc_nlp_put(ndlp); lpfc_els_free_iocb(phba, elsiocb); return 1; } lpfc_nlp_put(ndlp); return 0; } static void lpfc_end_rscn(struct lpfc_vport *vport) { struct Scsi_Host *shost = lpfc_shost_from_vport(vport); if (vport->fc_flag & FC_RSCN_MODE) { /* * Check to see if more RSCNs came in while we were * processing this one. */ if (vport->fc_rscn_id_cnt || (vport->fc_flag & FC_RSCN_DISCOVERY) != 0) lpfc_els_handle_rscn(vport); else { spin_lock_irq(shost->host_lock); vport->fc_flag &= ~FC_RSCN_MODE; spin_unlock_irq(shost->host_lock); } } } void lpfc_cancel_retry_delay_tmo(struct lpfc_vport *vport, struct lpfc_nodelist *nlp) { struct Scsi_Host *shost = lpfc_shost_from_vport(vport); spin_lock_irq(shost->host_lock); nlp->nlp_flag &= ~NLP_DELAY_TMO; spin_unlock_irq(shost->host_lock); del_timer_sync(&nlp->nlp_delayfunc); nlp->nlp_last_elscmd = 0; if (!list_empty(&nlp->els_retry_evt.evt_listp)) list_del_init(&nlp->els_retry_evt.evt_listp); if (nlp->nlp_flag & NLP_NPR_2B_DISC) { spin_lock_irq(shost->host_lock); nlp->nlp_flag &= ~NLP_NPR_2B_DISC; spin_unlock_irq(shost->host_lock); if (vport->num_disc_nodes) { /* Check to see if there are more * PLOGIs to be sent */ lpfc_more_plogi(vport); if (vport->num_disc_nodes == 0) { spin_lock_irq(shost->host_lock); vport->fc_flag &= ~FC_NDISC_ACTIVE; spin_unlock_irq(shost->host_lock); lpfc_can_disctmo(vport); lpfc_end_rscn(vport); } } } return; } void lpfc_els_retry_delay(unsigned long ptr) { struct lpfc_nodelist *ndlp = (struct lpfc_nodelist *) ptr; struct lpfc_vport *vport = ndlp->vport; struct lpfc_hba *phba = vport->phba; unsigned long flags; struct lpfc_work_evt *evtp = &ndlp->els_retry_evt; ndlp = (struct lpfc_nodelist *) ptr; phba = ndlp->vport->phba; evtp = &ndlp->els_retry_evt; spin_lock_irqsave(&phba->hbalock, flags); if (!list_empty(&evtp->evt_listp)) { spin_unlock_irqrestore(&phba->hbalock, flags); return; } evtp->evt_arg1 = ndlp; evtp->evt = LPFC_EVT_ELS_RETRY; list_add_tail(&evtp->evt_listp, &phba->work_list); if (phba->work_wait) lpfc_worker_wake_up(phba); spin_unlock_irqrestore(&phba->hbalock, flags); return; } void lpfc_els_retry_delay_handler(struct lpfc_nodelist *ndlp) { struct lpfc_vport *vport = ndlp->vport; struct Scsi_Host *shost = lpfc_shost_from_vport(vport); uint32_t cmd, did, retry; spin_lock_irq(shost->host_lock); did = ndlp->nlp_DID; cmd = ndlp->nlp_last_elscmd; ndlp->nlp_last_elscmd = 0; if (!(ndlp->nlp_flag & NLP_DELAY_TMO)) { spin_unlock_irq(shost->host_lock); return; } ndlp->nlp_flag &= ~NLP_DELAY_TMO; spin_unlock_irq(shost->host_lock); /* * If a discovery event readded nlp_delayfunc after timer * firing and before processing the timer, cancel the * nlp_delayfunc. */ del_timer_sync(&ndlp->nlp_delayfunc); retry = ndlp->nlp_retry; switch (cmd) { case ELS_CMD_FLOGI: lpfc_issue_els_flogi(vport, ndlp, retry); break; case ELS_CMD_PLOGI: if (!lpfc_issue_els_plogi(vport, ndlp->nlp_DID, retry)) { ndlp->nlp_prev_state = ndlp->nlp_state; lpfc_nlp_set_state(vport, ndlp, NLP_STE_PLOGI_ISSUE); } break; case ELS_CMD_ADISC: if (!lpfc_issue_els_adisc(vport, ndlp, retry)) { ndlp->nlp_prev_state = ndlp->nlp_state; lpfc_nlp_set_state(vport, ndlp, NLP_STE_ADISC_ISSUE); } break; case ELS_CMD_PRLI: if (!lpfc_issue_els_prli(vport, ndlp, retry)) { ndlp->nlp_prev_state = ndlp->nlp_state; lpfc_nlp_set_state(vport, ndlp, NLP_STE_PRLI_ISSUE); } break; case ELS_CMD_LOGO: if (!lpfc_issue_els_logo(vport, ndlp, retry)) { ndlp->nlp_prev_state = ndlp->nlp_state; lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); } break; case ELS_CMD_FDISC: lpfc_issue_els_fdisc(vport, ndlp, retry); break; } return; } static int lpfc_els_retry(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb, struct lpfc_iocbq *rspiocb) { struct lpfc_vport *vport = cmdiocb->vport; struct Scsi_Host *shost = lpfc_shost_from_vport(vport); IOCB_t *irsp = &rspiocb->iocb; struct lpfc_nodelist *ndlp = (struct lpfc_nodelist *) cmdiocb->context1; struct lpfc_dmabuf *pcmd = (struct lpfc_dmabuf *) cmdiocb->context2; uint32_t *elscmd; struct ls_rjt stat; int retry = 0, maxretry = lpfc_max_els_tries, delay = 0; uint32_t cmd = 0; uint32_t did; /* Note: context2 may be 0 for internal driver abort * of delays ELS command. */ if (pcmd && pcmd->virt) { elscmd = (uint32_t *) (pcmd->virt); cmd = *elscmd++; } if (ndlp) did = ndlp->nlp_DID; else { /* We should only hit this case for retrying PLOGI */ did = irsp->un.elsreq64.remoteID; ndlp = lpfc_findnode_did(vport, did); if (!ndlp && (cmd != ELS_CMD_PLOGI)) return 1; } lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, "Retry ELS: wd7:x%x wd4:x%x did:x%x", *(((uint32_t *) irsp) + 7), irsp->un.ulpWord[4], ndlp->nlp_DID); switch (irsp->ulpStatus) { case IOSTAT_FCP_RSP_ERROR: case IOSTAT_REMOTE_STOP: break; case IOSTAT_LOCAL_REJECT: switch ((irsp->un.ulpWord[4] & 0xff)) { case IOERR_LOOP_OPEN_FAILURE: if (cmd == ELS_CMD_PLOGI && cmdiocb->retry == 0) delay = 1000; retry = 1; break; case IOERR_ILLEGAL_COMMAND: if ((phba->sli3_options & LPFC_SLI3_VPORT_TEARDOWN) && (cmd == ELS_CMD_FDISC)) { lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS, "0124 FDISC failed (3/6) " "retrying...\n"); lpfc_mbx_unreg_vpi(vport); retry = 1; /* FDISC retry policy */ maxretry = 48; if (cmdiocb->retry >= 32) delay = 1000; } break; case IOERR_NO_RESOURCES: retry = 1; if (cmdiocb->retry > 100) delay = 100; maxretry = 250; break; case IOERR_ILLEGAL_FRAME: delay = 100; retry = 1; break; case IOERR_SEQUENCE_TIMEOUT: case IOERR_INVALID_RPI: retry = 1; break; } break; case IOSTAT_NPORT_RJT: case IOSTAT_FABRIC_RJT: if (irsp->un.ulpWord[4] & RJT_UNAVAIL_TEMP) { retry = 1; break; } break; case IOSTAT_NPORT_BSY: case IOSTAT_FABRIC_BSY: retry = 1; break; case IOSTAT_LS_RJT: stat.un.lsRjtError = be32_to_cpu(irsp->un.ulpWord[4]); /* Added for Vendor specifc support * Just keep retrying for these Rsn / Exp codes */ switch (stat.un.b.lsRjtRsnCode) { case LSRJT_UNABLE_TPC: if (stat.un.b.lsRjtRsnCodeExp == LSEXP_CMD_IN_PROGRESS) { if (cmd == ELS_CMD_PLOGI) { delay = 1000; maxretry = 48; } retry = 1; break; } if (cmd == ELS_CMD_PLOGI) { delay = 1000; maxretry = lpfc_max_els_tries + 1; retry = 1; break; } if ((phba->sli3_options & LPFC_SLI3_NPIV_ENABLED) && (cmd == ELS_CMD_FDISC) && (stat.un.b.lsRjtRsnCodeExp == LSEXP_OUT_OF_RESOURCE)){ lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS, "0125 FDISC Failed (x%x). " "Fabric out of resources\n", stat.un.lsRjtError); lpfc_vport_set_state(vport, FC_VPORT_NO_FABRIC_RSCS); } break; case LSRJT_LOGICAL_BSY: if ((cmd == ELS_CMD_PLOGI) || (cmd == ELS_CMD_PRLI)) { delay = 1000; maxretry = 48; } else if (cmd == ELS_CMD_FDISC) { /* FDISC retry policy */ maxretry = 48; if (cmdiocb->retry >= 32) delay = 1000; } retry = 1; break; case LSRJT_LOGICAL_ERR: case LSRJT_PROTOCOL_ERR: if ((phba->sli3_options & LPFC_SLI3_NPIV_ENABLED) && (cmd == ELS_CMD_FDISC) && ((stat.un.b.lsRjtRsnCodeExp == LSEXP_INVALID_PNAME) || (stat.un.b.lsRjtRsnCodeExp == LSEXP_INVALID_NPORT_ID)) ) { lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS, "0123 FDISC Failed (x%x). " "Fabric Detected Bad WWN\n", stat.un.lsRjtError); lpfc_vport_set_state(vport, FC_VPORT_FABRIC_REJ_WWN); } break; } break; case IOSTAT_INTERMED_RSP: case IOSTAT_BA_RJT: break; default: break; } if (did == FDMI_DID) retry = 1; if ((++cmdiocb->retry) >= maxretry) { phba->fc_stat.elsRetryExceeded++; retry = 0; } if ((vport->load_flag & FC_UNLOADING) != 0) retry = 0; if (retry) { /* Retry ELS command to remote NPORT */ lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, "0107 Retry ELS command x%x to remote " "NPORT x%x Data: x%x x%x\n", cmd, did, cmdiocb->retry, delay); if (((cmd == ELS_CMD_PLOGI) || (cmd == ELS_CMD_ADISC)) && ((irsp->ulpStatus != IOSTAT_LOCAL_REJECT) || ((irsp->un.ulpWord[4] & 0xff) != IOERR_NO_RESOURCES))) { /* Don't reset timer for no resources */ /* If discovery / RSCN timer is running, reset it */ if (timer_pending(&vport->fc_disctmo) || (vport->fc_flag & FC_RSCN_MODE)) lpfc_set_disctmo(vport); } phba->fc_stat.elsXmitRetry++; if (ndlp && delay) { phba->fc_stat.elsDelayRetry++; ndlp->nlp_retry = cmdiocb->retry; /* delay is specified in milliseconds */ mod_timer(&ndlp->nlp_delayfunc, jiffies + msecs_to_jiffies(delay)); spin_lock_irq(shost->host_lock); ndlp->nlp_flag |= NLP_DELAY_TMO; spin_unlock_irq(shost->host_lock); ndlp->nlp_prev_state = ndlp->nlp_state; if (cmd == ELS_CMD_PRLI) lpfc_nlp_set_state(vport, ndlp, NLP_STE_REG_LOGIN_ISSUE); else lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); ndlp->nlp_last_elscmd = cmd; return 1; } switch (cmd) { case ELS_CMD_FLOGI: lpfc_issue_els_flogi(vport, ndlp, cmdiocb->retry); return 1; case ELS_CMD_FDISC: lpfc_issue_els_fdisc(vport, ndlp, cmdiocb->retry); return 1; case ELS_CMD_PLOGI: if (ndlp) { ndlp->nlp_prev_state = ndlp->nlp_state; lpfc_nlp_set_state(vport, ndlp, NLP_STE_PLOGI_ISSUE); } lpfc_issue_els_plogi(vport, did, cmdiocb->retry); return 1; case ELS_CMD_ADISC: ndlp->nlp_prev_state = ndlp->nlp_state; lpfc_nlp_set_state(vport, ndlp, NLP_STE_ADISC_ISSUE); lpfc_issue_els_adisc(vport, ndlp, cmdiocb->retry); return 1; case ELS_CMD_PRLI: ndlp->nlp_prev_state = ndlp->nlp_state; lpfc_nlp_set_state(vport, ndlp, NLP_STE_PRLI_ISSUE); lpfc_issue_els_prli(vport, ndlp, cmdiocb->retry); return 1; case ELS_CMD_LOGO: ndlp->nlp_prev_state = ndlp->nlp_state; lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); lpfc_issue_els_logo(vport, ndlp, cmdiocb->retry); return 1; } } /* No retry ELS command to remote NPORT */ lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS, "0108 No retry ELS command x%x to remote " "NPORT x%x Retried:%d Error:x%x/%x\n", cmd, did, cmdiocb->retry, irsp->ulpStatus, irsp->un.ulpWord[4]); return 0; } int lpfc_els_free_iocb(struct lpfc_hba *phba, struct lpfc_iocbq *elsiocb) { struct lpfc_dmabuf *buf_ptr, *buf_ptr1; if (elsiocb->context1) { lpfc_nlp_put(elsiocb->context1); elsiocb->context1 = NULL; } /* context2 = cmd, context2->next = rsp, context3 = bpl */ if (elsiocb->context2) { buf_ptr1 = (struct lpfc_dmabuf *) elsiocb->context2; /* Free the response before processing the command. */ if (!list_empty(&buf_ptr1->list)) { list_remove_head(&buf_ptr1->list, buf_ptr, struct lpfc_dmabuf, list); lpfc_mbuf_free(phba, buf_ptr->virt, buf_ptr->phys); kfree(buf_ptr); } lpfc_mbuf_free(phba, buf_ptr1->virt, buf_ptr1->phys); kfree(buf_ptr1); } if (elsiocb->context3) { buf_ptr = (struct lpfc_dmabuf *) elsiocb->context3; lpfc_mbuf_free(phba, buf_ptr->virt, buf_ptr->phys); kfree(buf_ptr); } lpfc_sli_release_iocbq(phba, elsiocb); return 0; } static void lpfc_cmpl_els_logo_acc(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb, struct lpfc_iocbq *rspiocb) { struct lpfc_nodelist *ndlp = (struct lpfc_nodelist *) cmdiocb->context1; struct lpfc_vport *vport = cmdiocb->vport; IOCB_t *irsp; irsp = &rspiocb->iocb; lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_RSP, "ACC LOGO cmpl: status:x%x/x%x did:x%x", irsp->ulpStatus, irsp->un.ulpWord[4], ndlp->nlp_DID); /* ACC to LOGO completes to NPort */ lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, "0109 ACC to LOGO completes to NPort x%x " "Data: x%x x%x x%x\n", ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_state, ndlp->nlp_rpi); switch (ndlp->nlp_state) { case NLP_STE_UNUSED_NODE: /* node is just allocated */ lpfc_drop_node(vport, ndlp); break; case NLP_STE_NPR_NODE: /* NPort Recovery mode */ lpfc_unreg_rpi(vport, ndlp); break; default: break; } lpfc_els_free_iocb(phba, cmdiocb); return; } void lpfc_mbx_cmpl_dflt_rpi(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb) { struct lpfc_dmabuf *mp = (struct lpfc_dmabuf *) (pmb->context1); struct lpfc_nodelist *ndlp = (struct lpfc_nodelist *) pmb->context2; pmb->context1 = NULL; lpfc_mbuf_free(phba, mp->virt, mp->phys); kfree(mp); mempool_free(pmb, phba->mbox_mem_pool); lpfc_nlp_put(ndlp); return; } static void lpfc_cmpl_els_rsp(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb, struct lpfc_iocbq *rspiocb) { struct lpfc_nodelist *ndlp = (struct lpfc_nodelist *) cmdiocb->context1; struct lpfc_vport *vport = ndlp ? ndlp->vport : NULL; struct Scsi_Host *shost = vport ? lpfc_shost_from_vport(vport) : NULL; IOCB_t *irsp; LPFC_MBOXQ_t *mbox = NULL; struct lpfc_dmabuf *mp = NULL; irsp = &rspiocb->iocb; if (cmdiocb->context_un.mbox) mbox = cmdiocb->context_un.mbox; /* Check to see if link went down during discovery */ if (!ndlp || lpfc_els_chk_latt(vport)) { if (mbox) { mp = (struct lpfc_dmabuf *) mbox->context1; if (mp) { lpfc_mbuf_free(phba, mp->virt, mp->phys); kfree(mp); } mempool_free(mbox, phba->mbox_mem_pool); } goto out; } lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_RSP, "ELS rsp cmpl: status:x%x/x%x did:x%x", irsp->ulpStatus, irsp->un.ulpWord[4], cmdiocb->iocb.un.elsreq64.remoteID); /* ELS response tag completes */ lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, "0110 ELS response tag x%x completes " "Data: x%x x%x x%x x%x x%x x%x x%x\n", cmdiocb->iocb.ulpIoTag, rspiocb->iocb.ulpStatus, rspiocb->iocb.un.ulpWord[4], rspiocb->iocb.ulpTimeout, ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_state, ndlp->nlp_rpi); if (mbox) { if ((rspiocb->iocb.ulpStatus == 0) && (ndlp->nlp_flag & NLP_ACC_REGLOGIN)) { lpfc_unreg_rpi(vport, ndlp); mbox->context2 = lpfc_nlp_get(ndlp); mbox->vport = vport; if (ndlp->nlp_flag & NLP_RM_DFLT_RPI) { mbox->mbox_flag |= LPFC_MBX_IMED_UNREG; mbox->mbox_cmpl = lpfc_mbx_cmpl_dflt_rpi; } else { mbox->mbox_cmpl = lpfc_mbx_cmpl_reg_login; ndlp->nlp_prev_state = ndlp->nlp_state; lpfc_nlp_set_state(vport, ndlp, NLP_STE_REG_LOGIN_ISSUE); } if (lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT) != MBX_NOT_FINISHED) { goto out; } lpfc_nlp_put(ndlp); /* NOTE: we should have messages for unsuccessful reglogin */ } else { /* Do not drop node for lpfc_els_abort'ed ELS cmds */ if (!lpfc_error_lost_link(irsp) && ndlp->nlp_flag & NLP_ACC_REGLOGIN) { lpfc_drop_node(vport, ndlp); ndlp = NULL; } } mp = (struct lpfc_dmabuf *) mbox->context1; if (mp) { lpfc_mbuf_free(phba, mp->virt, mp->phys); kfree(mp); } mempool_free(mbox, phba->mbox_mem_pool); } out: if (ndlp) { spin_lock_irq(shost->host_lock); ndlp->nlp_flag &= ~(NLP_ACC_REGLOGIN | NLP_RM_DFLT_RPI); spin_unlock_irq(shost->host_lock); } lpfc_els_free_iocb(phba, cmdiocb); return; } int lpfc_els_rsp_acc(struct lpfc_vport *vport, uint32_t flag, struct lpfc_iocbq *oldiocb, struct lpfc_nodelist *ndlp, LPFC_MBOXQ_t *mbox) { struct Scsi_Host *shost = lpfc_shost_from_vport(vport); struct lpfc_hba *phba = vport->phba; IOCB_t *icmd; IOCB_t *oldcmd; struct lpfc_iocbq *elsiocb; struct lpfc_sli_ring *pring; struct lpfc_sli *psli; uint8_t *pcmd; uint16_t cmdsize; int rc; ELS_PKT *els_pkt_ptr; psli = &phba->sli; pring = &psli->ring[LPFC_ELS_RING]; /* ELS ring */ oldcmd = &oldiocb->iocb; switch (flag) { case ELS_CMD_ACC: cmdsize = sizeof(uint32_t); elsiocb = lpfc_prep_els_iocb(vport, 0, cmdsize, oldiocb->retry, ndlp, ndlp->nlp_DID, ELS_CMD_ACC); if (!elsiocb) { spin_lock_irq(shost->host_lock); ndlp->nlp_flag &= ~NLP_LOGO_ACC; spin_unlock_irq(shost->host_lock); return 1; } icmd = &elsiocb->iocb; icmd->ulpContext = oldcmd->ulpContext; /* Xri */ pcmd = (((struct lpfc_dmabuf *) elsiocb->context2)->virt); *((uint32_t *) (pcmd)) = ELS_CMD_ACC; pcmd += sizeof(uint32_t); lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_RSP, "Issue ACC: did:x%x flg:x%x", ndlp->nlp_DID, ndlp->nlp_flag, 0); break; case ELS_CMD_PLOGI: cmdsize = (sizeof(struct serv_parm) + sizeof(uint32_t)); elsiocb = lpfc_prep_els_iocb(vport, 0, cmdsize, oldiocb->retry, ndlp, ndlp->nlp_DID, ELS_CMD_ACC); if (!elsiocb) return 1; icmd = &elsiocb->iocb; icmd->ulpContext = oldcmd->ulpContext; /* Xri */ pcmd = (((struct lpfc_dmabuf *) elsiocb->context2)->virt); if (mbox) elsiocb->context_un.mbox = mbox; *((uint32_t *) (pcmd)) = ELS_CMD_ACC; pcmd += sizeof(uint32_t); memcpy(pcmd, &vport->fc_sparam, sizeof(struct serv_parm)); lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_RSP, "Issue ACC PLOGI: did:x%x flg:x%x", ndlp->nlp_DID, ndlp->nlp_flag, 0); break; case ELS_CMD_PRLO: cmdsize = sizeof(uint32_t) + sizeof(PRLO); elsiocb = lpfc_prep_els_iocb(vport, 0, cmdsize, oldiocb->retry, ndlp, ndlp->nlp_DID, ELS_CMD_PRLO); if (!elsiocb) return 1; icmd = &elsiocb->iocb; icmd->ulpContext = oldcmd->ulpContext; /* Xri */ pcmd = (((struct lpfc_dmabuf *) elsiocb->context2)->virt); memcpy(pcmd, ((struct lpfc_dmabuf *) oldiocb->context2)->virt, sizeof(uint32_t) + sizeof(PRLO)); *((uint32_t *) (pcmd)) = ELS_CMD_PRLO_ACC; els_pkt_ptr = (ELS_PKT *) pcmd; els_pkt_ptr->un.prlo.acceptRspCode = PRLO_REQ_EXECUTED; lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_RSP, "Issue ACC PRLO: did:x%x flg:x%x", ndlp->nlp_DID, ndlp->nlp_flag, 0); break; default: return 1; } /* Xmit ELS ACC response tag */ lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, "0128 Xmit ELS ACC response tag x%x, XRI: x%x, " "DID: x%x, nlp_flag: x%x nlp_state: x%x RPI: x%x\n", elsiocb->iotag, elsiocb->iocb.ulpContext, ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_state, ndlp->nlp_rpi); if (ndlp->nlp_flag & NLP_LOGO_ACC) { spin_lock_irq(shost->host_lock); ndlp->nlp_flag &= ~NLP_LOGO_ACC; spin_unlock_irq(shost->host_lock); elsiocb->iocb_cmpl = lpfc_cmpl_els_logo_acc; } else { elsiocb->iocb_cmpl = lpfc_cmpl_els_rsp; } phba->fc_stat.elsXmitACC++; rc = lpfc_sli_issue_iocb(phba, pring, elsiocb, 0); if (rc == IOCB_ERROR) { lpfc_els_free_iocb(phba, elsiocb); return 1; } return 0; } int lpfc_els_rsp_reject(struct lpfc_vport *vport, uint32_t rejectError, struct lpfc_iocbq *oldiocb, struct lpfc_nodelist *ndlp, LPFC_MBOXQ_t *mbox) { struct lpfc_hba *phba = vport->phba; IOCB_t *icmd; IOCB_t *oldcmd; struct lpfc_iocbq *elsiocb; struct lpfc_sli_ring *pring; struct lpfc_sli *psli; uint8_t *pcmd; uint16_t cmdsize; int rc; psli = &phba->sli; pring = &psli->ring[LPFC_ELS_RING]; /* ELS ring */ cmdsize = 2 * sizeof(uint32_t); elsiocb = lpfc_prep_els_iocb(vport, 0, cmdsize, oldiocb->retry, ndlp, ndlp->nlp_DID, ELS_CMD_LS_RJT); if (!elsiocb) return 1; icmd = &elsiocb->iocb; oldcmd = &oldiocb->iocb; icmd->ulpContext = oldcmd->ulpContext; /* Xri */ pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt); *((uint32_t *) (pcmd)) = ELS_CMD_LS_RJT; pcmd += sizeof(uint32_t); *((uint32_t *) (pcmd)) = rejectError; if (mbox) elsiocb->context_un.mbox = mbox; /* Xmit ELS RJT response tag */ lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, "0129 Xmit ELS RJT x%x response tag x%x " "xri x%x, did x%x, nlp_flag x%x, nlp_state x%x, " "rpi x%x\n", rejectError, elsiocb->iotag, elsiocb->iocb.ulpContext, ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_state, ndlp->nlp_rpi); lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_RSP, "Issue LS_RJT: did:x%x flg:x%x err:x%x", ndlp->nlp_DID, ndlp->nlp_flag, rejectError); phba->fc_stat.elsXmitLSRJT++; elsiocb->iocb_cmpl = lpfc_cmpl_els_rsp; rc = lpfc_sli_issue_iocb(phba, pring, elsiocb, 0); /* If the node is in the UNUSED state, and we are sending * a reject, we are done with it. Release driver reference * count here. The outstanding els will release its reference on * completion and the node can be freed then. */ if (ndlp->nlp_state == NLP_STE_UNUSED_NODE) lpfc_nlp_put(ndlp); if (rc == IOCB_ERROR) { lpfc_els_free_iocb(phba, elsiocb); return 1; } return 0; } int lpfc_els_rsp_adisc_acc(struct lpfc_vport *vport, struct lpfc_iocbq *oldiocb, struct lpfc_nodelist *ndlp) { struct lpfc_hba *phba = vport->phba; struct lpfc_sli *psli = &phba->sli; struct lpfc_sli_ring *pring = &psli->ring[LPFC_ELS_RING]; ADISC *ap; IOCB_t *icmd, *oldcmd; struct lpfc_iocbq *elsiocb; uint8_t *pcmd; uint16_t cmdsize; int rc; cmdsize = sizeof(uint32_t) + sizeof(ADISC); elsiocb = lpfc_prep_els_iocb(vport, 0, cmdsize, oldiocb->retry, ndlp, ndlp->nlp_DID, ELS_CMD_ACC); if (!elsiocb) return 1; icmd = &elsiocb->iocb; oldcmd = &oldiocb->iocb; icmd->ulpContext = oldcmd->ulpContext; /* Xri */ /* Xmit ADISC ACC response tag */ lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, "0130 Xmit ADISC ACC response iotag x%x xri: " "x%x, did x%x, nlp_flag x%x, nlp_state x%x rpi x%x\n", elsiocb->iotag, elsiocb->iocb.ulpContext, ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_state, ndlp->nlp_rpi); pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt); *((uint32_t *) (pcmd)) = ELS_CMD_ACC; pcmd += sizeof(uint32_t); ap = (ADISC *) (pcmd); ap->hardAL_PA = phba->fc_pref_ALPA; memcpy(&ap->portName, &vport->fc_portname, sizeof(struct lpfc_name)); memcpy(&ap->nodeName, &vport->fc_nodename, sizeof(struct lpfc_name)); ap->DID = be32_to_cpu(vport->fc_myDID); lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_RSP, "Issue ACC ADISC: did:x%x flg:x%x", ndlp->nlp_DID, ndlp->nlp_flag, 0); phba->fc_stat.elsXmitACC++; elsiocb->iocb_cmpl = lpfc_cmpl_els_rsp; rc = lpfc_sli_issue_iocb(phba, pring, elsiocb, 0); if (rc == IOCB_ERROR) { lpfc_els_free_iocb(phba, elsiocb); return 1; } return 0; } int lpfc_els_rsp_prli_acc(struct lpfc_vport *vport, struct lpfc_iocbq *oldiocb, struct lpfc_nodelist *ndlp) { struct lpfc_hba *phba = vport->phba; PRLI *npr; lpfc_vpd_t *vpd; IOCB_t *icmd; IOCB_t *oldcmd; struct lpfc_iocbq *elsiocb; struct lpfc_sli_ring *pring; struct lpfc_sli *psli; uint8_t *pcmd; uint16_t cmdsize; int rc; psli = &phba->sli; pring = &psli->ring[LPFC_ELS_RING]; /* ELS ring */ cmdsize = sizeof(uint32_t) + sizeof(PRLI); elsiocb = lpfc_prep_els_iocb(vport, 0, cmdsize, oldiocb->retry, ndlp, ndlp->nlp_DID, (ELS_CMD_ACC | (ELS_CMD_PRLI & ~ELS_RSP_MASK))); if (!elsiocb) return 1; icmd = &elsiocb->iocb; oldcmd = &oldiocb->iocb; icmd->ulpContext = oldcmd->ulpContext; /* Xri */ /* Xmit PRLI ACC response tag */ lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, "0131 Xmit PRLI ACC response tag x%x xri x%x, " "did x%x, nlp_flag x%x, nlp_state x%x, rpi x%x\n", elsiocb->iotag, elsiocb->iocb.ulpContext, ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_state, ndlp->nlp_rpi); pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt); *((uint32_t *) (pcmd)) = (ELS_CMD_ACC | (ELS_CMD_PRLI & ~ELS_RSP_MASK)); pcmd += sizeof(uint32_t); /* For PRLI, remainder of payload is PRLI parameter page */ memset(pcmd, 0, sizeof(PRLI)); npr = (PRLI *) pcmd; vpd = &phba->vpd; /* * If our firmware version is 3.20 or later, * set the following bits for FC-TAPE support. */ if (vpd->rev.feaLevelHigh >= 0x02) { npr->ConfmComplAllowed = 1; npr->Retry = 1; npr->TaskRetryIdReq = 1; } npr->acceptRspCode = PRLI_REQ_EXECUTED; npr->estabImagePair = 1; npr->readXferRdyDis = 1; npr->ConfmComplAllowed = 1; npr->prliType = PRLI_FCP_TYPE; npr->initiatorFunc = 1; lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_RSP, "Issue ACC PRLI: did:x%x flg:x%x", ndlp->nlp_DID, ndlp->nlp_flag, 0); phba->fc_stat.elsXmitACC++; elsiocb->iocb_cmpl = lpfc_cmpl_els_rsp; rc = lpfc_sli_issue_iocb(phba, pring, elsiocb, 0); if (rc == IOCB_ERROR) { lpfc_els_free_iocb(phba, elsiocb); return 1; } return 0; } static int lpfc_els_rsp_rnid_acc(struct lpfc_vport *vport, uint8_t format, struct lpfc_iocbq *oldiocb, struct lpfc_nodelist *ndlp) { struct lpfc_hba *phba = vport->phba; RNID *rn; IOCB_t *icmd, *oldcmd; struct lpfc_iocbq *elsiocb; struct lpfc_sli_ring *pring; struct lpfc_sli *psli; uint8_t *pcmd; uint16_t cmdsize; int rc; psli = &phba->sli; pring = &psli->ring[LPFC_ELS_RING]; cmdsize = sizeof(uint32_t) + sizeof(uint32_t) + (2 * sizeof(struct lpfc_name)); if (format) cmdsize += sizeof(RNID_TOP_DISC); elsiocb = lpfc_prep_els_iocb(vport, 0, cmdsize, oldiocb->retry, ndlp, ndlp->nlp_DID, ELS_CMD_ACC); if (!elsiocb) return 1; icmd = &elsiocb->iocb; oldcmd = &oldiocb->iocb; icmd->ulpContext = oldcmd->ulpContext; /* Xri */ /* Xmit RNID ACC response tag */ lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, "0132 Xmit RNID ACC response tag x%x xri x%x\n", elsiocb->iotag, elsiocb->iocb.ulpContext); pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt); *((uint32_t *) (pcmd)) = ELS_CMD_ACC; pcmd += sizeof(uint32_t); memset(pcmd, 0, sizeof(RNID)); rn = (RNID *) (pcmd); rn->Format = format; rn->CommonLen = (2 * sizeof(struct lpfc_name)); memcpy(&rn->portName, &vport->fc_portname, sizeof(struct lpfc_name)); memcpy(&rn->nodeName, &vport->fc_nodename, sizeof(struct lpfc_name)); switch (format) { case 0: rn->SpecificLen = 0; break; case RNID_TOPOLOGY_DISC: rn->SpecificLen = sizeof(RNID_TOP_DISC); memcpy(&rn->un.topologyDisc.portName, &vport->fc_portname, sizeof(struct lpfc_name)); rn->un.topologyDisc.unitType = RNID_HBA; rn->un.topologyDisc.physPort = 0; rn->un.topologyDisc.attachedNodes = 0; break; default: rn->CommonLen = 0; rn->SpecificLen = 0; break; } lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_RSP, "Issue ACC RNID: did:x%x flg:x%x", ndlp->nlp_DID, ndlp->nlp_flag, 0); phba->fc_stat.elsXmitACC++; elsiocb->iocb_cmpl = lpfc_cmpl_els_rsp; lpfc_nlp_put(ndlp); elsiocb->context1 = NULL; /* Don't need ndlp for cmpl, * it could be freed */ rc = lpfc_sli_issue_iocb(phba, pring, elsiocb, 0); if (rc == IOCB_ERROR) { lpfc_els_free_iocb(phba, elsiocb); return 1; } return 0; } int lpfc_els_disc_adisc(struct lpfc_vport *vport) { struct Scsi_Host *shost = lpfc_shost_from_vport(vport); struct lpfc_nodelist *ndlp, *next_ndlp; int sentadisc = 0; /* go thru NPR nodes and issue any remaining ELS ADISCs */ list_for_each_entry_safe(ndlp, next_ndlp, &vport->fc_nodes, nlp_listp) { if (ndlp->nlp_state == NLP_STE_NPR_NODE && (ndlp->nlp_flag & NLP_NPR_2B_DISC) != 0 && (ndlp->nlp_flag & NLP_NPR_ADISC) != 0) { spin_lock_irq(shost->host_lock); ndlp->nlp_flag &= ~NLP_NPR_ADISC; spin_unlock_irq(shost->host_lock); ndlp->nlp_prev_state = ndlp->nlp_state; lpfc_nlp_set_state(vport, ndlp, NLP_STE_ADISC_ISSUE); lpfc_issue_els_adisc(vport, ndlp, 0); sentadisc++; vport->num_disc_nodes++; if (vport->num_disc_nodes >= vport->cfg_discovery_threads) { spin_lock_irq(shost->host_lock); vport->fc_flag |= FC_NLP_MORE; spin_unlock_irq(shost->host_lock); break; } } } if (sentadisc == 0) { spin_lock_irq(shost->host_lock); vport->fc_flag &= ~FC_NLP_MORE; spin_unlock_irq(shost->host_lock); } return sentadisc; } int lpfc_els_disc_plogi(struct lpfc_vport *vport) { struct Scsi_Host *shost = lpfc_shost_from_vport(vport); struct lpfc_nodelist *ndlp, *next_ndlp; int sentplogi = 0; /* go thru NPR nodes and issue any remaining ELS PLOGIs */ list_for_each_entry_safe(ndlp, next_ndlp, &vport->fc_nodes, nlp_listp) { if (ndlp->nlp_state == NLP_STE_NPR_NODE && (ndlp->nlp_flag & NLP_NPR_2B_DISC) != 0 && (ndlp->nlp_flag & NLP_DELAY_TMO) == 0 && (ndlp->nlp_flag & NLP_NPR_ADISC) == 0) { ndlp->nlp_prev_state = ndlp->nlp_state; lpfc_nlp_set_state(vport, ndlp, NLP_STE_PLOGI_ISSUE); lpfc_issue_els_plogi(vport, ndlp->nlp_DID, 0); sentplogi++; vport->num_disc_nodes++; if (vport->num_disc_nodes >= vport->cfg_discovery_threads) { spin_lock_irq(shost->host_lock); vport->fc_flag |= FC_NLP_MORE; spin_unlock_irq(shost->host_lock); break; } } } if (sentplogi == 0) { spin_lock_irq(shost->host_lock); vport->fc_flag &= ~FC_NLP_MORE; spin_unlock_irq(shost->host_lock); } return sentplogi; } void lpfc_els_flush_rscn(struct lpfc_vport *vport) { struct Scsi_Host *shost = lpfc_shost_from_vport(vport); struct lpfc_hba *phba = vport->phba; int i; for (i = 0; i < vport->fc_rscn_id_cnt; i++) { lpfc_in_buf_free(phba, vport->fc_rscn_id_list[i]); vport->fc_rscn_id_list[i] = NULL; } spin_lock_irq(shost->host_lock); vport->fc_rscn_id_cnt = 0; vport->fc_flag &= ~(FC_RSCN_MODE | FC_RSCN_DISCOVERY); spin_unlock_irq(shost->host_lock); lpfc_can_disctmo(vport); } int lpfc_rscn_payload_check(struct lpfc_vport *vport, uint32_t did) { D_ID ns_did; D_ID rscn_did; uint32_t *lp; uint32_t payload_len, i; ns_did.un.word = did; /* Never match fabric nodes for RSCNs */ if ((did & Fabric_DID_MASK) == Fabric_DID_MASK) return 0; /* If we are doing a FULL RSCN rediscovery, match everything */ if (vport->fc_flag & FC_RSCN_DISCOVERY) return did; for (i = 0; i < vport->fc_rscn_id_cnt; i++) { lp = vport->fc_rscn_id_list[i]->virt; payload_len = be32_to_cpu(*lp++ & ~ELS_CMD_MASK); payload_len -= sizeof(uint32_t); /* take off word 0 */ while (payload_len) { rscn_did.un.word = be32_to_cpu(*lp++); payload_len -= sizeof(uint32_t); switch (rscn_did.un.b.resv) { case 0: /* Single N_Port ID effected */ if (ns_did.un.word == rscn_did.un.word) return did; break; case 1: /* Whole N_Port Area effected */ if ((ns_did.un.b.domain == rscn_did.un.b.domain) && (ns_did.un.b.area == rscn_did.un.b.area)) return did; break; case 2: /* Whole N_Port Domain effected */ if (ns_did.un.b.domain == rscn_did.un.b.domain) return did; break; default: /* Unknown Identifier in RSCN node */ lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY, "0217 Unknown Identifier in " "RSCN payload Data: x%x\n", rscn_did.un.word); case 3: /* Whole Fabric effected */ return did; } } } return 0; } static int lpfc_rscn_recovery_check(struct lpfc_vport *vport) { struct lpfc_nodelist *ndlp = NULL; /* Look at all nodes effected by pending RSCNs and move * them to NPR state. */ list_for_each_entry(ndlp, &vport->fc_nodes, nlp_listp) { if (ndlp->nlp_state == NLP_STE_UNUSED_NODE || lpfc_rscn_payload_check(vport, ndlp->nlp_DID) == 0) continue; lpfc_disc_state_machine(vport, ndlp, NULL, NLP_EVT_DEVICE_RECOVERY); /* * Make sure NLP_DELAY_TMO is NOT running after a device * recovery event. */ if (ndlp->nlp_flag & NLP_DELAY_TMO) lpfc_cancel_retry_delay_tmo(vport, ndlp); } return 0; } static int lpfc_els_rcv_rscn(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb, struct lpfc_nodelist *ndlp) { struct Scsi_Host *shost = lpfc_shost_from_vport(vport); struct lpfc_hba *phba = vport->phba; struct lpfc_dmabuf *pcmd; uint32_t *lp, *datap; IOCB_t *icmd; uint32_t payload_len, length, nportid, *cmd; int rscn_cnt = vport->fc_rscn_id_cnt; int rscn_id = 0, hba_id = 0; int i; icmd = &cmdiocb->iocb; pcmd = (struct lpfc_dmabuf *) cmdiocb->context2; lp = (uint32_t *) pcmd->virt; payload_len = be32_to_cpu(*lp++ & ~ELS_CMD_MASK); payload_len -= sizeof(uint32_t); /* take off word 0 */ /* RSCN received */ lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, "0214 RSCN received Data: x%x x%x x%x x%x\n", vport->fc_flag, payload_len, *lp, rscn_cnt); for (i = 0; i < payload_len/sizeof(uint32_t); i++) fc_host_post_event(shost, fc_get_event_number(), FCH_EVT_RSCN, lp[i]); /* If we are about to begin discovery, just ACC the RSCN. * Discovery processing will satisfy it. */ if (vport->port_state <= LPFC_NS_QRY) { lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL, "RCV RSCN ignore: did:x%x/ste:x%x flg:x%x", ndlp->nlp_DID, vport->port_state, ndlp->nlp_flag); lpfc_els_rsp_acc(vport, ELS_CMD_ACC, cmdiocb, ndlp, NULL); return 0; } /* If this RSCN just contains NPortIDs for other vports on this HBA, * just ACC and ignore it. */ if ((phba->sli3_options & LPFC_SLI3_NPIV_ENABLED) && !(vport->cfg_peer_port_login)) { i = payload_len; datap = lp; while (i > 0) { nportid = *datap++; nportid = ((be32_to_cpu(nportid)) & Mask_DID); i -= sizeof(uint32_t); rscn_id++; if (lpfc_find_vport_by_did(phba, nportid)) hba_id++; } if (rscn_id == hba_id) { /* ALL NPortIDs in RSCN are on HBA */ lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, "0214 Ignore RSCN " "Data: x%x x%x x%x x%x\n", vport->fc_flag, payload_len, *lp, rscn_cnt); lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL, "RCV RSCN vport: did:x%x/ste:x%x flg:x%x", ndlp->nlp_DID, vport->port_state, ndlp->nlp_flag); lpfc_els_rsp_acc(vport, ELS_CMD_ACC, cmdiocb, ndlp, NULL); return 0; } } /* If we are already processing an RSCN, save the received * RSCN payload buffer, cmdiocb->context2 to process later. */ if (vport->fc_flag & (FC_RSCN_MODE | FC_NDISC_ACTIVE)) { lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL, "RCV RSCN defer: did:x%x/ste:x%x flg:x%x", ndlp->nlp_DID, vport->port_state, ndlp->nlp_flag); vport->fc_flag |= FC_RSCN_DEFERRED; if ((rscn_cnt < FC_MAX_HOLD_RSCN) && !(vport->fc_flag & FC_RSCN_DISCOVERY)) { spin_lock_irq(shost->host_lock); vport->fc_flag |= FC_RSCN_MODE; spin_unlock_irq(shost->host_lock); if (rscn_cnt) { cmd = vport->fc_rscn_id_list[rscn_cnt-1]->virt; length = be32_to_cpu(*cmd & ~ELS_CMD_MASK); } if ((rscn_cnt) && (payload_len + length <= LPFC_BPL_SIZE)) { *cmd &= ELS_CMD_MASK; *cmd |= be32_to_cpu(payload_len + length); memcpy(((uint8_t *)cmd) + length, lp, payload_len); } else { vport->fc_rscn_id_list[rscn_cnt] = pcmd; vport->fc_rscn_id_cnt++; /* If we zero, cmdiocb->context2, the calling * routine will not try to free it. */ cmdiocb->context2 = NULL; } /* Deferred RSCN */ lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, "0235 Deferred RSCN " "Data: x%x x%x x%x\n", vport->fc_rscn_id_cnt, vport->fc_flag, vport->port_state); } else { spin_lock_irq(shost->host_lock); vport->fc_flag |= FC_RSCN_DISCOVERY; spin_unlock_irq(shost->host_lock); /* ReDiscovery RSCN */ lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, "0234 ReDiscovery RSCN " "Data: x%x x%x x%x\n", vport->fc_rscn_id_cnt, vport->fc_flag, vport->port_state); } /* Send back ACC */ lpfc_els_rsp_acc(vport, ELS_CMD_ACC, cmdiocb, ndlp, NULL); /* send RECOVERY event for ALL nodes that match RSCN payload */ lpfc_rscn_recovery_check(vport); vport->fc_flag &= ~FC_RSCN_DEFERRED; return 0; } lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL, "RCV RSCN: did:x%x/ste:x%x flg:x%x", ndlp->nlp_DID, vport->port_state, ndlp->nlp_flag); spin_lock_irq(shost->host_lock); vport->fc_flag |= FC_RSCN_MODE; spin_unlock_irq(shost->host_lock); vport->fc_rscn_id_list[vport->fc_rscn_id_cnt++] = pcmd; /* * If we zero, cmdiocb->context2, the calling routine will * not try to free it. */ cmdiocb->context2 = NULL; lpfc_set_disctmo(vport); /* Send back ACC */ lpfc_els_rsp_acc(vport, ELS_CMD_ACC, cmdiocb, ndlp, NULL); /* send RECOVERY event for ALL nodes that match RSCN payload */ lpfc_rscn_recovery_check(vport); return lpfc_els_handle_rscn(vport); } int lpfc_els_handle_rscn(struct lpfc_vport *vport) { struct lpfc_nodelist *ndlp; struct lpfc_hba *phba = vport->phba; /* Ignore RSCN if the port is being torn down. */ if (vport->load_flag & FC_UNLOADING) { lpfc_els_flush_rscn(vport); return 0; } /* Start timer for RSCN processing */ lpfc_set_disctmo(vport); /* RSCN processed */ lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, "0215 RSCN processed Data: x%x x%x x%x x%x\n", vport->fc_flag, 0, vport->fc_rscn_id_cnt, vport->port_state); /* To process RSCN, first compare RSCN data with NameServer */ vport->fc_ns_retry = 0; ndlp = lpfc_findnode_did(vport, NameServer_DID); if (ndlp && ndlp->nlp_state == NLP_STE_UNMAPPED_NODE) { /* Good ndlp, issue CT Request to NameServer */ if (lpfc_ns_cmd(vport, SLI_CTNS_GID_FT, 0, 0) == 0) /* Wait for NameServer query cmpl before we can continue */ return 1; } else { /* If login to NameServer does not exist, issue one */ /* Good status, issue PLOGI to NameServer */ ndlp = lpfc_findnode_did(vport, NameServer_DID); if (ndlp) /* Wait for NameServer login cmpl before we can continue */ return 1; ndlp = mempool_alloc(phba->nlp_mem_pool, GFP_KERNEL); if (!ndlp) { lpfc_els_flush_rscn(vport); return 0; } else { lpfc_nlp_init(vport, ndlp, NameServer_DID); ndlp->nlp_type |= NLP_FABRIC; ndlp->nlp_prev_state = ndlp->nlp_state; lpfc_nlp_set_state(vport, ndlp, NLP_STE_PLOGI_ISSUE); lpfc_issue_els_plogi(vport, NameServer_DID, 0); /* Wait for NameServer login cmpl before we can continue */ return 1; } } lpfc_els_flush_rscn(vport); return 0; } static int lpfc_els_rcv_flogi(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb, struct lpfc_nodelist *ndlp) { struct Scsi_Host *shost = lpfc_shost_from_vport(vport); struct lpfc_hba *phba = vport->phba; struct lpfc_dmabuf *pcmd = (struct lpfc_dmabuf *) cmdiocb->context2; uint32_t *lp = (uint32_t *) pcmd->virt; IOCB_t *icmd = &cmdiocb->iocb; struct serv_parm *sp; LPFC_MBOXQ_t *mbox; struct ls_rjt stat; uint32_t cmd, did; int rc; cmd = *lp++; sp = (struct serv_parm *) lp; /* FLOGI received */ lpfc_set_disctmo(vport); if (phba->fc_topology == TOPOLOGY_LOOP) { /* We should never receive a FLOGI in loop mode, ignore it */ did = icmd->un.elsreq64.remoteID; /* An FLOGI ELS command was received from DID in Loop Mode */ lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS, "0113 An FLOGI ELS command x%x was " "received from DID x%x in Loop Mode\n", cmd, did); return 1; } did = Fabric_DID; if ((lpfc_check_sparm(vport, ndlp, sp, CLASS3))) { /* For a FLOGI we accept, then if our portname is greater * then the remote portname we initiate Nport login. */ rc = memcmp(&vport->fc_portname, &sp->portName, sizeof(struct lpfc_name)); if (!rc) { mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); if (!mbox) return 1; lpfc_linkdown(phba); lpfc_init_link(phba, mbox, phba->cfg_topology, phba->cfg_link_speed); mbox->mb.un.varInitLnk.lipsr_AL_PA = 0; mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl; mbox->vport = vport; rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT); lpfc_set_loopback_flag(phba); if (rc == MBX_NOT_FINISHED) { mempool_free(mbox, phba->mbox_mem_pool); } return 1; } else if (rc > 0) { /* greater than */ spin_lock_irq(shost->host_lock); vport->fc_flag |= FC_PT2PT_PLOGI; spin_unlock_irq(shost->host_lock); } spin_lock_irq(shost->host_lock); vport->fc_flag |= FC_PT2PT; vport->fc_flag &= ~(FC_FABRIC | FC_PUBLIC_LOOP); spin_unlock_irq(shost->host_lock); } else { /* Reject this request because invalid parameters */ stat.un.b.lsRjtRsvd0 = 0; stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC; stat.un.b.lsRjtRsnCodeExp = LSEXP_SPARM_OPTIONS; stat.un.b.vendorUnique = 0; lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, NULL); return 1; } /* Send back ACC */ lpfc_els_rsp_acc(vport, ELS_CMD_PLOGI, cmdiocb, ndlp, NULL); return 0; } static int lpfc_els_rcv_rnid(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb, struct lpfc_nodelist *ndlp) { struct lpfc_dmabuf *pcmd; uint32_t *lp; IOCB_t *icmd; RNID *rn; struct ls_rjt stat; uint32_t cmd, did; icmd = &cmdiocb->iocb; did = icmd->un.elsreq64.remoteID; pcmd = (struct lpfc_dmabuf *) cmdiocb->context2; lp = (uint32_t *) pcmd->virt; cmd = *lp++; rn = (RNID *) lp; /* RNID received */ switch (rn->Format) { case 0: case RNID_TOPOLOGY_DISC: /* Send back ACC */ lpfc_els_rsp_rnid_acc(vport, rn->Format, cmdiocb, ndlp); break; default: /* Reject this request because format not supported */ stat.un.b.lsRjtRsvd0 = 0; stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC; stat.un.b.lsRjtRsnCodeExp = LSEXP_CANT_GIVE_DATA; stat.un.b.vendorUnique = 0; lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, NULL); } return 0; } static int lpfc_els_rcv_lirr(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb, struct lpfc_nodelist *ndlp) { struct ls_rjt stat; /* For now, unconditionally reject this command */ stat.un.b.lsRjtRsvd0 = 0; stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC; stat.un.b.lsRjtRsnCodeExp = LSEXP_CANT_GIVE_DATA; stat.un.b.vendorUnique = 0; lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, NULL); return 0; } static void lpfc_els_rsp_rps_acc(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb) { struct lpfc_sli *psli = &phba->sli; struct lpfc_sli_ring *pring = &psli->ring[LPFC_ELS_RING]; MAILBOX_t *mb; IOCB_t *icmd; RPS_RSP *rps_rsp; uint8_t *pcmd; struct lpfc_iocbq *elsiocb; struct lpfc_nodelist *ndlp; uint16_t xri, status; uint32_t cmdsize; mb = &pmb->mb; ndlp = (struct lpfc_nodelist *) pmb->context2; xri = (uint16_t) ((unsigned long)(pmb->context1)); pmb->context1 = NULL; pmb->context2 = NULL; if (mb->mbxStatus) { mempool_free(pmb, phba->mbox_mem_pool); return; } cmdsize = sizeof(RPS_RSP) + sizeof(uint32_t); mempool_free(pmb, phba->mbox_mem_pool); elsiocb = lpfc_prep_els_iocb(phba->pport, 0, cmdsize, lpfc_max_els_tries, ndlp, ndlp->nlp_DID, ELS_CMD_ACC); lpfc_nlp_put(ndlp); if (!elsiocb) return; icmd = &elsiocb->iocb; icmd->ulpContext = xri; pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt); *((uint32_t *) (pcmd)) = ELS_CMD_ACC; pcmd += sizeof(uint32_t); /* Skip past command */ rps_rsp = (RPS_RSP *)pcmd; if (phba->fc_topology != TOPOLOGY_LOOP) status = 0x10; else status = 0x8; if (phba->pport->fc_flag & FC_FABRIC) status |= 0x4; rps_rsp->rsvd1 = 0; rps_rsp->portStatus = be16_to_cpu(status); rps_rsp->linkFailureCnt = be32_to_cpu(mb->un.varRdLnk.linkFailureCnt); rps_rsp->lossSyncCnt = be32_to_cpu(mb->un.varRdLnk.lossSyncCnt); rps_rsp->lossSignalCnt = be32_to_cpu(mb->un.varRdLnk.lossSignalCnt); rps_rsp->primSeqErrCnt = be32_to_cpu(mb->un.varRdLnk.primSeqErrCnt); rps_rsp->invalidXmitWord = be32_to_cpu(mb->un.varRdLnk.invalidXmitWord); rps_rsp->crcCnt = be32_to_cpu(mb->un.varRdLnk.crcCnt); /* Xmit ELS RPS ACC response tag */ lpfc_printf_vlog(ndlp->vport, KERN_INFO, LOG_ELS, "0118 Xmit ELS RPS ACC response tag x%x xri x%x, " "did x%x, nlp_flag x%x, nlp_state x%x, rpi x%x\n", elsiocb->iotag, elsiocb->iocb.ulpContext, ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_state, ndlp->nlp_rpi); elsiocb->iocb_cmpl = lpfc_cmpl_els_rsp; phba->fc_stat.elsXmitACC++; if (lpfc_sli_issue_iocb(phba, pring, elsiocb, 0) == IOCB_ERROR) lpfc_els_free_iocb(phba, elsiocb); return; } static int lpfc_els_rcv_rps(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb, struct lpfc_nodelist *ndlp) { struct lpfc_hba *phba = vport->phba; uint32_t *lp; uint8_t flag; LPFC_MBOXQ_t *mbox; struct lpfc_dmabuf *pcmd; RPS *rps; struct ls_rjt stat; if ((ndlp->nlp_state != NLP_STE_UNMAPPED_NODE) && (ndlp->nlp_state != NLP_STE_MAPPED_NODE)) { stat.un.b.lsRjtRsvd0 = 0; stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC; stat.un.b.lsRjtRsnCodeExp = LSEXP_CANT_GIVE_DATA; stat.un.b.vendorUnique = 0; lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, NULL); } pcmd = (struct lpfc_dmabuf *) cmdiocb->context2; lp = (uint32_t *) pcmd->virt; flag = (be32_to_cpu(*lp++) & 0xf); rps = (RPS *) lp; if ((flag == 0) || ((flag == 1) && (be32_to_cpu(rps->un.portNum) == 0)) || ((flag == 2) && (memcmp(&rps->un.portName, &vport->fc_portname, sizeof(struct lpfc_name)) == 0))) { printk("Fix me....\n"); dump_stack(); mbox = mempool_alloc(phba->mbox_mem_pool, GFP_ATOMIC); if (mbox) { lpfc_read_lnk_stat(phba, mbox); mbox->context1 = (void *)((unsigned long) cmdiocb->iocb.ulpContext); mbox->context2 = lpfc_nlp_get(ndlp); mbox->vport = vport; mbox->mbox_cmpl = lpfc_els_rsp_rps_acc; if (lpfc_sli_issue_mbox (phba, mbox, MBX_NOWAIT) != MBX_NOT_FINISHED) /* Mbox completion will send ELS Response */ return 0; lpfc_nlp_put(ndlp); mempool_free(mbox, phba->mbox_mem_pool); } } stat.un.b.lsRjtRsvd0 = 0; stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC; stat.un.b.lsRjtRsnCodeExp = LSEXP_CANT_GIVE_DATA; stat.un.b.vendorUnique = 0; lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, NULL); return 0; } static int lpfc_els_rsp_rpl_acc(struct lpfc_vport *vport, uint16_t cmdsize, struct lpfc_iocbq *oldiocb, struct lpfc_nodelist *ndlp) { struct lpfc_hba *phba = vport->phba; IOCB_t *icmd, *oldcmd; RPL_RSP rpl_rsp; struct lpfc_iocbq *elsiocb; struct lpfc_sli *psli = &phba->sli; struct lpfc_sli_ring *pring = &psli->ring[LPFC_ELS_RING]; uint8_t *pcmd; elsiocb = lpfc_prep_els_iocb(vport, 0, cmdsize, oldiocb->retry, ndlp, ndlp->nlp_DID, ELS_CMD_ACC); if (!elsiocb) return 1; icmd = &elsiocb->iocb; oldcmd = &oldiocb->iocb; icmd->ulpContext = oldcmd->ulpContext; /* Xri */ pcmd = (((struct lpfc_dmabuf *) elsiocb->context2)->virt); *((uint32_t *) (pcmd)) = ELS_CMD_ACC; pcmd += sizeof(uint16_t); *((uint16_t *)(pcmd)) = be16_to_cpu(cmdsize); pcmd += sizeof(uint16_t); /* Setup the RPL ACC payload */ rpl_rsp.listLen = be32_to_cpu(1); rpl_rsp.index = 0; rpl_rsp.port_num_blk.portNum = 0; rpl_rsp.port_num_blk.portID = be32_to_cpu(vport->fc_myDID); memcpy(&rpl_rsp.port_num_blk.portName, &vport->fc_portname, sizeof(struct lpfc_name)); memcpy(pcmd, &rpl_rsp, cmdsize - sizeof(uint32_t)); /* Xmit ELS RPL ACC response tag */ lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, "0120 Xmit ELS RPL ACC response tag x%x " "xri x%x, did x%x, nlp_flag x%x, nlp_state x%x, " "rpi x%x\n", elsiocb->iotag, elsiocb->iocb.ulpContext, ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_state, ndlp->nlp_rpi); elsiocb->iocb_cmpl = lpfc_cmpl_els_rsp; phba->fc_stat.elsXmitACC++; if (lpfc_sli_issue_iocb(phba, pring, elsiocb, 0) == IOCB_ERROR) { lpfc_els_free_iocb(phba, elsiocb); return 1; } return 0; } static int lpfc_els_rcv_rpl(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb, struct lpfc_nodelist *ndlp) { struct lpfc_dmabuf *pcmd; uint32_t *lp; uint32_t maxsize; uint16_t cmdsize; RPL *rpl; struct ls_rjt stat; if ((ndlp->nlp_state != NLP_STE_UNMAPPED_NODE) && (ndlp->nlp_state != NLP_STE_MAPPED_NODE)) { stat.un.b.lsRjtRsvd0 = 0; stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC; stat.un.b.lsRjtRsnCodeExp = LSEXP_CANT_GIVE_DATA; stat.un.b.vendorUnique = 0; lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, NULL); } pcmd = (struct lpfc_dmabuf *) cmdiocb->context2; lp = (uint32_t *) pcmd->virt; rpl = (RPL *) (lp + 1); maxsize = be32_to_cpu(rpl->maxsize); /* We support only one port */ if ((rpl->index == 0) && ((maxsize == 0) || ((maxsize * sizeof(uint32_t)) >= sizeof(RPL_RSP)))) { cmdsize = sizeof(uint32_t) + sizeof(RPL_RSP); } else { cmdsize = sizeof(uint32_t) + maxsize * sizeof(uint32_t); } lpfc_els_rsp_rpl_acc(vport, cmdsize, cmdiocb, ndlp); return 0; } static int lpfc_els_rcv_farp(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb, struct lpfc_nodelist *ndlp) { struct lpfc_dmabuf *pcmd; uint32_t *lp; IOCB_t *icmd; FARP *fp; uint32_t cmd, cnt, did; icmd = &cmdiocb->iocb; did = icmd->un.elsreq64.remoteID; pcmd = (struct lpfc_dmabuf *) cmdiocb->context2; lp = (uint32_t *) pcmd->virt; cmd = *lp++; fp = (FARP *) lp; /* FARP-REQ received from DID */ lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, "0601 FARP-REQ received from DID x%x\n", did); /* We will only support match on WWPN or WWNN */ if (fp->Mflags & ~(FARP_MATCH_NODE | FARP_MATCH_PORT)) { return 0; } cnt = 0; /* If this FARP command is searching for my portname */ if (fp->Mflags & FARP_MATCH_PORT) { if (memcmp(&fp->RportName, &vport->fc_portname, sizeof(struct lpfc_name)) == 0) cnt = 1; } /* If this FARP command is searching for my nodename */ if (fp->Mflags & FARP_MATCH_NODE) { if (memcmp(&fp->RnodeName, &vport->fc_nodename, sizeof(struct lpfc_name)) == 0) cnt = 1; } if (cnt) { if ((ndlp->nlp_state == NLP_STE_UNMAPPED_NODE) || (ndlp->nlp_state == NLP_STE_MAPPED_NODE)) { /* Log back into the node before sending the FARP. */ if (fp->Rflags & FARP_REQUEST_PLOGI) { ndlp->nlp_prev_state = ndlp->nlp_state; lpfc_nlp_set_state(vport, ndlp, NLP_STE_PLOGI_ISSUE); lpfc_issue_els_plogi(vport, ndlp->nlp_DID, 0); } /* Send a FARP response to that node */ if (fp->Rflags & FARP_REQUEST_FARPR) lpfc_issue_els_farpr(vport, did, 0); } } return 0; } static int lpfc_els_rcv_farpr(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb, struct lpfc_nodelist *ndlp) { struct lpfc_dmabuf *pcmd; uint32_t *lp; IOCB_t *icmd; uint32_t cmd, did; icmd = &cmdiocb->iocb; did = icmd->un.elsreq64.remoteID; pcmd = (struct lpfc_dmabuf *) cmdiocb->context2; lp = (uint32_t *) pcmd->virt; cmd = *lp++; /* FARP-RSP received from DID */ lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, "0600 FARP-RSP received from DID x%x\n", did); /* ACCEPT the Farp resp request */ lpfc_els_rsp_acc(vport, ELS_CMD_ACC, cmdiocb, ndlp, NULL); return 0; } static int lpfc_els_rcv_fan(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb, struct lpfc_nodelist *fan_ndlp) { struct lpfc_dmabuf *pcmd; uint32_t *lp; IOCB_t *icmd; uint32_t cmd, did; FAN *fp; struct lpfc_nodelist *ndlp, *next_ndlp; struct lpfc_hba *phba = vport->phba; /* FAN received */ lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, "0265 FAN received\n"); icmd = &cmdiocb->iocb; did = icmd->un.elsreq64.remoteID; pcmd = (struct lpfc_dmabuf *)cmdiocb->context2; lp = (uint32_t *)pcmd->virt; cmd = *lp++; fp = (FAN *) lp; /* FAN received; Fan does not have a reply sequence */ if (phba->pport->port_state == LPFC_LOCAL_CFG_LINK) { if ((memcmp(&phba->fc_fabparam.nodeName, &fp->FnodeName, sizeof(struct lpfc_name)) != 0) || (memcmp(&phba->fc_fabparam.portName, &fp->FportName, sizeof(struct lpfc_name)) != 0)) { /* * This node has switched fabrics. FLOGI is required * Clean up the old rpi's */ list_for_each_entry_safe(ndlp, next_ndlp, &vport->fc_nodes, nlp_listp) { if (ndlp->nlp_state != NLP_STE_NPR_NODE) continue; if (ndlp->nlp_type & NLP_FABRIC) { /* * Clean up old Fabric, Nameserver and * other NLP_FABRIC logins */ lpfc_drop_node(vport, ndlp); } else if (!(ndlp->nlp_flag & NLP_NPR_ADISC)) { /* Fail outstanding I/O now since this * device is marked for PLOGI */ lpfc_unreg_rpi(vport, ndlp); } } vport->port_state = LPFC_FLOGI; lpfc_set_disctmo(vport); lpfc_initial_flogi(vport); return 0; } /* Discovery not needed, * move the nodes to their original state. */ list_for_each_entry_safe(ndlp, next_ndlp, &vport->fc_nodes, nlp_listp) { if (ndlp->nlp_state != NLP_STE_NPR_NODE) continue; switch (ndlp->nlp_prev_state) { case NLP_STE_UNMAPPED_NODE: ndlp->nlp_prev_state = NLP_STE_NPR_NODE; lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE); break; case NLP_STE_MAPPED_NODE: ndlp->nlp_prev_state = NLP_STE_NPR_NODE; lpfc_nlp_set_state(vport, ndlp, NLP_STE_MAPPED_NODE); break; default: break; } } /* Start discovery - this should just do CLEAR_LA */ lpfc_disc_start(vport); } return 0; } void lpfc_els_timeout(unsigned long ptr) { struct lpfc_vport *vport = (struct lpfc_vport *) ptr; struct lpfc_hba *phba = vport->phba; unsigned long iflag; spin_lock_irqsave(&vport->work_port_lock, iflag); if ((vport->work_port_events & WORKER_ELS_TMO) == 0) { vport->work_port_events |= WORKER_ELS_TMO; spin_unlock_irqrestore(&vport->work_port_lock, iflag); spin_lock_irqsave(&phba->hbalock, iflag); if (phba->work_wait) lpfc_worker_wake_up(phba); spin_unlock_irqrestore(&phba->hbalock, iflag); } else spin_unlock_irqrestore(&vport->work_port_lock, iflag); return; } void lpfc_els_timeout_handler(struct lpfc_vport *vport) { struct lpfc_hba *phba = vport->phba; struct lpfc_sli_ring *pring; struct lpfc_iocbq *tmp_iocb, *piocb; IOCB_t *cmd = NULL; struct lpfc_dmabuf *pcmd; uint32_t els_command = 0; uint32_t timeout; uint32_t remote_ID = 0xffffffff; /* If the timer is already canceled do nothing */ if ((vport->work_port_events & WORKER_ELS_TMO) == 0) { return; } spin_lock_irq(&phba->hbalock); timeout = (uint32_t)(phba->fc_ratov << 1); pring = &phba->sli.ring[LPFC_ELS_RING]; list_for_each_entry_safe(piocb, tmp_iocb, &pring->txcmplq, list) { cmd = &piocb->iocb; if ((piocb->iocb_flag & LPFC_IO_LIBDFC) != 0 || piocb->iocb.ulpCommand == CMD_ABORT_XRI_CN || piocb->iocb.ulpCommand == CMD_CLOSE_XRI_CN) continue; if (piocb->vport != vport) continue; pcmd = (struct lpfc_dmabuf *) piocb->context2; if (pcmd) els_command = *(uint32_t *) (pcmd->virt); if (els_command == ELS_CMD_FARP || els_command == ELS_CMD_FARPR || els_command == ELS_CMD_FDISC) continue; if (vport != piocb->vport) continue; if (piocb->drvrTimeout > 0) { if (piocb->drvrTimeout >= timeout) piocb->drvrTimeout -= timeout; else piocb->drvrTimeout = 0; continue; } remote_ID = 0xffffffff; if (cmd->ulpCommand != CMD_GEN_REQUEST64_CR) remote_ID = cmd->un.elsreq64.remoteID; else { struct lpfc_nodelist *ndlp; ndlp = __lpfc_findnode_rpi(vport, cmd->ulpContext); if (ndlp) remote_ID = ndlp->nlp_DID; } lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS, "0127 ELS timeout Data: x%x x%x x%x " "x%x\n", els_command, remote_ID, cmd->ulpCommand, cmd->ulpIoTag); lpfc_sli_issue_abort_iotag(phba, pring, piocb); } spin_unlock_irq(&phba->hbalock); if (phba->sli.ring[LPFC_ELS_RING].txcmplq_cnt) mod_timer(&vport->els_tmofunc, jiffies + HZ * timeout); } void lpfc_els_flush_cmd(struct lpfc_vport *vport) { LIST_HEAD(completions); struct lpfc_hba *phba = vport->phba; struct lpfc_sli_ring *pring = &phba->sli.ring[LPFC_ELS_RING]; struct lpfc_iocbq *tmp_iocb, *piocb; IOCB_t *cmd = NULL; lpfc_fabric_abort_vport(vport); spin_lock_irq(&phba->hbalock); list_for_each_entry_safe(piocb, tmp_iocb, &pring->txq, list) { cmd = &piocb->iocb; if (piocb->iocb_flag & LPFC_IO_LIBDFC) { continue; } /* Do not flush out the QUE_RING and ABORT/CLOSE iocbs */ if (cmd->ulpCommand == CMD_QUE_RING_BUF_CN || cmd->ulpCommand == CMD_QUE_RING_BUF64_CN || cmd->ulpCommand == CMD_CLOSE_XRI_CN || cmd->ulpCommand == CMD_ABORT_XRI_CN) continue; if (piocb->vport != vport) continue; list_move_tail(&piocb->list, &completions); pring->txq_cnt--; } list_for_each_entry_safe(piocb, tmp_iocb, &pring->txcmplq, list) { if (piocb->iocb_flag & LPFC_IO_LIBDFC) { continue; } if (piocb->vport != vport) continue; lpfc_sli_issue_abort_iotag(phba, pring, piocb); } spin_unlock_irq(&phba->hbalock); while (!list_empty(&completions)) { piocb = list_get_first(&completions, struct lpfc_iocbq, list); cmd = &piocb->iocb; list_del_init(&piocb->list); if (!piocb->iocb_cmpl) lpfc_sli_release_iocbq(phba, piocb); else { cmd->ulpStatus = IOSTAT_LOCAL_REJECT; cmd->un.ulpWord[4] = IOERR_SLI_ABORTED; (piocb->iocb_cmpl) (phba, piocb, piocb); } } return; } void lpfc_els_flush_all_cmd(struct lpfc_hba *phba) { LIST_HEAD(completions); struct lpfc_sli_ring *pring = &phba->sli.ring[LPFC_ELS_RING]; struct lpfc_iocbq *tmp_iocb, *piocb; IOCB_t *cmd = NULL; lpfc_fabric_abort_hba(phba); spin_lock_irq(&phba->hbalock); list_for_each_entry_safe(piocb, tmp_iocb, &pring->txq, list) { cmd = &piocb->iocb; if (piocb->iocb_flag & LPFC_IO_LIBDFC) continue; /* Do not flush out the QUE_RING and ABORT/CLOSE iocbs */ if (cmd->ulpCommand == CMD_QUE_RING_BUF_CN || cmd->ulpCommand == CMD_QUE_RING_BUF64_CN || cmd->ulpCommand == CMD_CLOSE_XRI_CN || cmd->ulpCommand == CMD_ABORT_XRI_CN) continue; list_move_tail(&piocb->list, &completions); pring->txq_cnt--; } list_for_each_entry_safe(piocb, tmp_iocb, &pring->txcmplq, list) { if (piocb->iocb_flag & LPFC_IO_LIBDFC) continue; lpfc_sli_issue_abort_iotag(phba, pring, piocb); } spin_unlock_irq(&phba->hbalock); while (!list_empty(&completions)) { piocb = list_get_first(&completions, struct lpfc_iocbq, list); cmd = &piocb->iocb; list_del_init(&piocb->list); if (!piocb->iocb_cmpl) lpfc_sli_release_iocbq(phba, piocb); else { cmd->ulpStatus = IOSTAT_LOCAL_REJECT; cmd->un.ulpWord[4] = IOERR_SLI_ABORTED; (piocb->iocb_cmpl) (phba, piocb, piocb); } } return; } static void lpfc_els_unsol_buffer(struct lpfc_hba *phba, struct lpfc_sli_ring *pring, struct lpfc_vport *vport, struct lpfc_iocbq *elsiocb) { struct lpfc_nodelist *ndlp; struct ls_rjt stat; uint32_t *payload; uint32_t cmd, did, newnode, rjt_err = 0; IOCB_t *icmd = &elsiocb->iocb; if (vport == NULL || elsiocb->context2 == NULL) goto dropit; newnode = 0; payload = ((struct lpfc_dmabuf *)elsiocb->context2)->virt; cmd = *payload; if ((phba->sli3_options & LPFC_SLI3_HBQ_ENABLED) == 0) lpfc_post_buffer(phba, pring, 1, 1); did = icmd->un.rcvels.remoteID; if (icmd->ulpStatus) { lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL, "RCV Unsol ELS: status:x%x/x%x did:x%x", icmd->ulpStatus, icmd->un.ulpWord[4], did); goto dropit; } /* Check to see if link went down during discovery */ if (lpfc_els_chk_latt(vport)) goto dropit; /* Ignore traffic recevied during vport shutdown. */ if (vport->load_flag & FC_UNLOADING) goto dropit; ndlp = lpfc_findnode_did(vport, did); if (!ndlp) { /* Cannot find existing Fabric ndlp, so allocate a new one */ ndlp = mempool_alloc(phba->nlp_mem_pool, GFP_KERNEL); if (!ndlp) goto dropit; lpfc_nlp_init(vport, ndlp, did); newnode = 1; if ((did & Fabric_DID_MASK) == Fabric_DID_MASK) { ndlp->nlp_type |= NLP_FABRIC; } lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNUSED_NODE); } phba->fc_stat.elsRcvFrame++; if (elsiocb->context1) lpfc_nlp_put(elsiocb->context1); elsiocb->context1 = lpfc_nlp_get(ndlp); elsiocb->vport = vport; if ((cmd & ELS_CMD_MASK) == ELS_CMD_RSCN) { cmd &= ELS_CMD_MASK; } /* ELS command received from NPORT */ lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, "0112 ELS command x%x received from NPORT x%x " "Data: x%x\n", cmd, did, vport->port_state); switch (cmd) { case ELS_CMD_PLOGI: lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL, "RCV PLOGI: did:x%x/ste:x%x flg:x%x", did, vport->port_state, ndlp->nlp_flag); phba->fc_stat.elsRcvPLOGI++; ndlp = lpfc_plogi_confirm_nport(phba, payload, ndlp); if (vport->port_state < LPFC_DISC_AUTH) { rjt_err = LSRJT_UNABLE_TPC; break; } lpfc_disc_state_machine(vport, ndlp, elsiocb, NLP_EVT_RCV_PLOGI); break; case ELS_CMD_FLOGI: lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL, "RCV FLOGI: did:x%x/ste:x%x flg:x%x", did, vport->port_state, ndlp->nlp_flag); phba->fc_stat.elsRcvFLOGI++; lpfc_els_rcv_flogi(vport, elsiocb, ndlp); if (newnode) lpfc_drop_node(vport, ndlp); break; case ELS_CMD_LOGO: lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL, "RCV LOGO: did:x%x/ste:x%x flg:x%x", did, vport->port_state, ndlp->nlp_flag); phba->fc_stat.elsRcvLOGO++; if (vport->port_state < LPFC_DISC_AUTH) { rjt_err = LSRJT_UNABLE_TPC; break; } lpfc_disc_state_machine(vport, ndlp, elsiocb, NLP_EVT_RCV_LOGO); break; case ELS_CMD_PRLO: lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL, "RCV PRLO: did:x%x/ste:x%x flg:x%x", did, vport->port_state, ndlp->nlp_flag); phba->fc_stat.elsRcvPRLO++; if (vport->port_state < LPFC_DISC_AUTH) { rjt_err = LSRJT_UNABLE_TPC; break; } lpfc_disc_state_machine(vport, ndlp, elsiocb, NLP_EVT_RCV_PRLO); break; case ELS_CMD_RSCN: phba->fc_stat.elsRcvRSCN++; lpfc_els_rcv_rscn(vport, elsiocb, ndlp); if (newnode) lpfc_drop_node(vport, ndlp); break; case ELS_CMD_ADISC: lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL, "RCV ADISC: did:x%x/ste:x%x flg:x%x", did, vport->port_state, ndlp->nlp_flag); phba->fc_stat.elsRcvADISC++; if (vport->port_state < LPFC_DISC_AUTH) { rjt_err = LSRJT_UNABLE_TPC; break; } lpfc_disc_state_machine(vport, ndlp, elsiocb, NLP_EVT_RCV_ADISC); break; case ELS_CMD_PDISC: lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL, "RCV PDISC: did:x%x/ste:x%x flg:x%x", did, vport->port_state, ndlp->nlp_flag); phba->fc_stat.elsRcvPDISC++; if (vport->port_state < LPFC_DISC_AUTH) { rjt_err = LSRJT_UNABLE_TPC; break; } lpfc_disc_state_machine(vport, ndlp, elsiocb, NLP_EVT_RCV_PDISC); break; case ELS_CMD_FARPR: lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL, "RCV FARPR: did:x%x/ste:x%x flg:x%x", did, vport->port_state, ndlp->nlp_flag); phba->fc_stat.elsRcvFARPR++; lpfc_els_rcv_farpr(vport, elsiocb, ndlp); break; case ELS_CMD_FARP: lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL, "RCV FARP: did:x%x/ste:x%x flg:x%x", did, vport->port_state, ndlp->nlp_flag); phba->fc_stat.elsRcvFARP++; lpfc_els_rcv_farp(vport, elsiocb, ndlp); break; case ELS_CMD_FAN: lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL, "RCV FAN: did:x%x/ste:x%x flg:x%x", did, vport->port_state, ndlp->nlp_flag); phba->fc_stat.elsRcvFAN++; lpfc_els_rcv_fan(vport, elsiocb, ndlp); break; case ELS_CMD_PRLI: lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL, "RCV PRLI: did:x%x/ste:x%x flg:x%x", did, vport->port_state, ndlp->nlp_flag); phba->fc_stat.elsRcvPRLI++; if (vport->port_state < LPFC_DISC_AUTH) { rjt_err = LSRJT_UNABLE_TPC; break; } lpfc_disc_state_machine(vport, ndlp, elsiocb, NLP_EVT_RCV_PRLI); break; case ELS_CMD_LIRR: lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL, "RCV LIRR: did:x%x/ste:x%x flg:x%x", did, vport->port_state, ndlp->nlp_flag); phba->fc_stat.elsRcvLIRR++; lpfc_els_rcv_lirr(vport, elsiocb, ndlp); if (newnode) lpfc_drop_node(vport, ndlp); break; case ELS_CMD_RPS: lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL, "RCV RPS: did:x%x/ste:x%x flg:x%x", did, vport->port_state, ndlp->nlp_flag); phba->fc_stat.elsRcvRPS++; lpfc_els_rcv_rps(vport, elsiocb, ndlp); if (newnode) lpfc_drop_node(vport, ndlp); break; case ELS_CMD_RPL: lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL, "RCV RPL: did:x%x/ste:x%x flg:x%x", did, vport->port_state, ndlp->nlp_flag); phba->fc_stat.elsRcvRPL++; lpfc_els_rcv_rpl(vport, elsiocb, ndlp); if (newnode) lpfc_drop_node(vport, ndlp); break; case ELS_CMD_RNID: lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL, "RCV RNID: did:x%x/ste:x%x flg:x%x", did, vport->port_state, ndlp->nlp_flag); phba->fc_stat.elsRcvRNID++; lpfc_els_rcv_rnid(vport, elsiocb, ndlp); if (newnode) lpfc_drop_node(vport, ndlp); break; default: lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL, "RCV ELS cmd: cmd:x%x did:x%x/ste:x%x", cmd, did, vport->port_state); /* Unsupported ELS command, reject */ rjt_err = LSRJT_INVALID_CMD; /* Unknown ELS command received from NPORT */ lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS, "0115 Unknown ELS command x%x " "received from NPORT x%x\n", cmd, did); if (newnode) lpfc_drop_node(vport, ndlp); break; } /* check if need to LS_RJT received ELS cmd */ if (rjt_err) { memset(&stat, 0, sizeof(stat)); stat.un.b.lsRjtRsnCode = rjt_err; stat.un.b.lsRjtRsnCodeExp = LSEXP_NOTHING_MORE; lpfc_els_rsp_reject(vport, stat.un.lsRjtError, elsiocb, ndlp, NULL); } return; dropit: lpfc_printf_log(phba, KERN_ERR, LOG_ELS, "(%d):0111 Dropping received ELS cmd " "Data: x%x x%x x%x\n", vport ? vport->vpi : 0xffff, icmd->ulpStatus, icmd->un.ulpWord[4], icmd->ulpTimeout); phba->fc_stat.elsRcvDrop++; } static struct lpfc_vport * lpfc_find_vport_by_vpid(struct lpfc_hba *phba, uint16_t vpi) { struct lpfc_vport *vport; unsigned long flags; spin_lock_irqsave(&phba->hbalock, flags); list_for_each_entry(vport, &phba->port_list, listentry) { if (vport->vpi == vpi) { spin_unlock_irqrestore(&phba->hbalock, flags); return vport; } } spin_unlock_irqrestore(&phba->hbalock, flags); return NULL; } void lpfc_els_unsol_event(struct lpfc_hba *phba, struct lpfc_sli_ring *pring, struct lpfc_iocbq *elsiocb) { struct lpfc_vport *vport = phba->pport; IOCB_t *icmd = &elsiocb->iocb; dma_addr_t paddr; struct lpfc_dmabuf *bdeBuf1 = elsiocb->context2; struct lpfc_dmabuf *bdeBuf2 = elsiocb->context3; elsiocb->context2 = NULL; elsiocb->context3 = NULL; if (icmd->ulpStatus == IOSTAT_NEED_BUFFER) { lpfc_sli_hbqbuf_add_hbqs(phba, LPFC_ELS_HBQ); } else if (icmd->ulpStatus == IOSTAT_LOCAL_REJECT && (icmd->un.ulpWord[4] & 0xff) == IOERR_RCV_BUFFER_WAITING) { phba->fc_stat.NoRcvBuf++; /* Not enough posted buffers; Try posting more buffers */ if (!(phba->sli3_options & LPFC_SLI3_HBQ_ENABLED)) lpfc_post_buffer(phba, pring, 0, 1); return; } if ((phba->sli3_options & LPFC_SLI3_NPIV_ENABLED) && (icmd->ulpCommand == CMD_IOCB_RCV_ELS64_CX || icmd->ulpCommand == CMD_IOCB_RCV_SEQ64_CX)) { if (icmd->unsli3.rcvsli3.vpi == 0xffff) vport = phba->pport; else { uint16_t vpi = icmd->unsli3.rcvsli3.vpi; vport = lpfc_find_vport_by_vpid(phba, vpi); } } /* If there are no BDEs associated * with this IOCB, there is nothing to do. */ if (icmd->ulpBdeCount == 0) return; /* type of ELS cmd is first 32bit word * in packet */ if (phba->sli3_options & LPFC_SLI3_HBQ_ENABLED) { elsiocb->context2 = bdeBuf1; } else { paddr = getPaddr(icmd->un.cont64[0].addrHigh, icmd->un.cont64[0].addrLow); elsiocb->context2 = lpfc_sli_ringpostbuf_get(phba, pring, paddr); } lpfc_els_unsol_buffer(phba, pring, vport, elsiocb); /* * The different unsolicited event handlers would tell us * if they are done with "mp" by setting context2 to NULL. */ lpfc_nlp_put(elsiocb->context1); elsiocb->context1 = NULL; if (elsiocb->context2) { lpfc_in_buf_free(phba, (struct lpfc_dmabuf *)elsiocb->context2); elsiocb->context2 = NULL; } /* RCV_ELS64_CX provide for 2 BDEs - process 2nd if included */ if ((phba->sli3_options & LPFC_SLI3_HBQ_ENABLED) && icmd->ulpBdeCount == 2) { elsiocb->context2 = bdeBuf2; lpfc_els_unsol_buffer(phba, pring, vport, elsiocb); /* free mp if we are done with it */ if (elsiocb->context2) { lpfc_in_buf_free(phba, elsiocb->context2); elsiocb->context2 = NULL; } } } void lpfc_do_scr_ns_plogi(struct lpfc_hba *phba, struct lpfc_vport *vport) { struct lpfc_nodelist *ndlp, *ndlp_fdmi; ndlp = lpfc_findnode_did(vport, NameServer_DID); if (!ndlp) { ndlp = mempool_alloc(phba->nlp_mem_pool, GFP_KERNEL); if (!ndlp) { if (phba->fc_topology == TOPOLOGY_LOOP) { lpfc_disc_start(vport); return; } lpfc_vport_set_state(vport, FC_VPORT_FAILED); lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS, "0251 NameServer login: no memory\n"); return; } lpfc_nlp_init(vport, ndlp, NameServer_DID); ndlp->nlp_type |= NLP_FABRIC; } lpfc_nlp_set_state(vport, ndlp, NLP_STE_PLOGI_ISSUE); if (lpfc_issue_els_plogi(vport, ndlp->nlp_DID, 0)) { lpfc_vport_set_state(vport, FC_VPORT_FAILED); lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS, "0252 Cannot issue NameServer login\n"); return; } if (vport->cfg_fdmi_on) { ndlp_fdmi = mempool_alloc(phba->nlp_mem_pool, GFP_KERNEL); if (ndlp_fdmi) { lpfc_nlp_init(vport, ndlp_fdmi, FDMI_DID); ndlp_fdmi->nlp_type |= NLP_FABRIC; ndlp_fdmi->nlp_state = NLP_STE_PLOGI_ISSUE; lpfc_issue_els_plogi(vport, ndlp_fdmi->nlp_DID, 0); } } return; } static void lpfc_cmpl_reg_new_vport(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb) { struct lpfc_vport *vport = pmb->vport; struct Scsi_Host *shost = lpfc_shost_from_vport(vport); struct lpfc_nodelist *ndlp = (struct lpfc_nodelist *) pmb->context2; MAILBOX_t *mb = &pmb->mb; vport->fc_flag &= ~FC_VPORT_NEEDS_REG_VPI; lpfc_nlp_put(ndlp); if (mb->mbxStatus) { lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX, "0915 Register VPI failed: 0x%x\n", mb->mbxStatus); switch (mb->mbxStatus) { case 0x11: /* unsupported feature */ case 0x9603: /* max_vpi exceeded */ /* giving up on vport registration */ lpfc_vport_set_state(vport, FC_VPORT_FAILED); spin_lock_irq(shost->host_lock); vport->fc_flag &= ~(FC_FABRIC | FC_PUBLIC_LOOP); spin_unlock_irq(shost->host_lock); lpfc_can_disctmo(vport); break; default: /* Try to recover from this error */ lpfc_mbx_unreg_vpi(vport); vport->fc_flag |= FC_VPORT_NEEDS_REG_VPI; lpfc_initial_fdisc(vport); break; } } else { if (vport == phba->pport) lpfc_issue_fabric_reglogin(vport); else lpfc_do_scr_ns_plogi(phba, vport); } mempool_free(pmb, phba->mbox_mem_pool); return; } void lpfc_register_new_vport(struct lpfc_hba *phba, struct lpfc_vport *vport, struct lpfc_nodelist *ndlp) { LPFC_MBOXQ_t *mbox; mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); if (mbox) { lpfc_reg_vpi(phba, vport->vpi, vport->fc_myDID, mbox); mbox->vport = vport; mbox->context2 = lpfc_nlp_get(ndlp); mbox->mbox_cmpl = lpfc_cmpl_reg_new_vport; if (lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT) == MBX_NOT_FINISHED) { mempool_free(mbox, phba->mbox_mem_pool); vport->fc_flag &= ~FC_VPORT_NEEDS_REG_VPI; lpfc_vport_set_state(vport, FC_VPORT_FAILED); lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX, "0253 Register VPI: Can't send mbox\n"); } } else { lpfc_vport_set_state(vport, FC_VPORT_FAILED); lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX, "0254 Register VPI: no memory\n"); vport->fc_flag &= ~FC_VPORT_NEEDS_REG_VPI; lpfc_nlp_put(ndlp); } } static void lpfc_cmpl_els_fdisc(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb, struct lpfc_iocbq *rspiocb) { struct lpfc_vport *vport = cmdiocb->vport; struct Scsi_Host *shost = lpfc_shost_from_vport(vport); struct lpfc_nodelist *ndlp = (struct lpfc_nodelist *) cmdiocb->context1; struct lpfc_nodelist *np; struct lpfc_nodelist *next_np; IOCB_t *irsp = &rspiocb->iocb; struct lpfc_iocbq *piocb; lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, "0123 FDISC completes. x%x/x%x prevDID: x%x\n", irsp->ulpStatus, irsp->un.ulpWord[4], vport->fc_prevDID); /* Since all FDISCs are being single threaded, we * must reset the discovery timer for ALL vports * waiting to send FDISC when one completes. */ list_for_each_entry(piocb, &phba->fabric_iocb_list, list) { lpfc_set_disctmo(piocb->vport); } lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, "FDISC cmpl: status:x%x/x%x prevdid:x%x", irsp->ulpStatus, irsp->un.ulpWord[4], vport->fc_prevDID); if (irsp->ulpStatus) { /* Check for retry */ if (lpfc_els_retry(phba, cmdiocb, rspiocb)) goto out; /* FDISC failed */ lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS, "0124 FDISC failed. (%d/%d)\n", irsp->ulpStatus, irsp->un.ulpWord[4]); if (vport->fc_vport->vport_state == FC_VPORT_INITIALIZING) lpfc_vport_set_state(vport, FC_VPORT_FAILED); lpfc_nlp_put(ndlp); /* giving up on FDISC. Cancel discovery timer */ lpfc_can_disctmo(vport); } else { spin_lock_irq(shost->host_lock); vport->fc_flag |= FC_FABRIC; if (vport->phba->fc_topology == TOPOLOGY_LOOP) vport->fc_flag |= FC_PUBLIC_LOOP; spin_unlock_irq(shost->host_lock); vport->fc_myDID = irsp->un.ulpWord[4] & Mask_DID; lpfc_vport_set_state(vport, FC_VPORT_ACTIVE); if ((vport->fc_prevDID != vport->fc_myDID) && !(vport->fc_flag & FC_VPORT_NEEDS_REG_VPI)) { /* If our NportID changed, we need to ensure all * remaining NPORTs get unreg_login'ed so we can * issue unreg_vpi. */ list_for_each_entry_safe(np, next_np, &vport->fc_nodes, nlp_listp) { if (np->nlp_state != NLP_STE_NPR_NODE || !(np->nlp_flag & NLP_NPR_ADISC)) continue; spin_lock_irq(shost->host_lock); np->nlp_flag &= ~NLP_NPR_ADISC; spin_unlock_irq(shost->host_lock); lpfc_unreg_rpi(vport, np); } lpfc_mbx_unreg_vpi(vport); vport->fc_flag |= FC_VPORT_NEEDS_REG_VPI; } if (vport->fc_flag & FC_VPORT_NEEDS_REG_VPI) lpfc_register_new_vport(phba, vport, ndlp); else lpfc_do_scr_ns_plogi(phba, vport); lpfc_nlp_put(ndlp); /* Free Fabric ndlp for vports */ } out: lpfc_els_free_iocb(phba, cmdiocb); } int lpfc_issue_els_fdisc(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, uint8_t retry) { struct lpfc_hba *phba = vport->phba; IOCB_t *icmd; struct lpfc_iocbq *elsiocb; struct serv_parm *sp; uint8_t *pcmd; uint16_t cmdsize; int did = ndlp->nlp_DID; int rc; cmdsize = (sizeof(uint32_t) + sizeof(struct serv_parm)); elsiocb = lpfc_prep_els_iocb(vport, 1, cmdsize, retry, ndlp, did, ELS_CMD_FDISC); if (!elsiocb) { lpfc_vport_set_state(vport, FC_VPORT_FAILED); lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS, "0255 Issue FDISC: no IOCB\n"); return 1; } icmd = &elsiocb->iocb; icmd->un.elsreq64.myID = 0; icmd->un.elsreq64.fl = 1; /* For FDISC, Let FDISC rsp set the NPortID for this VPI */ icmd->ulpCt_h = 1; icmd->ulpCt_l = 0; pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt); *((uint32_t *) (pcmd)) = ELS_CMD_FDISC; pcmd += sizeof(uint32_t); /* CSP Word 1 */ memcpy(pcmd, &vport->phba->pport->fc_sparam, sizeof(struct serv_parm)); sp = (struct serv_parm *) pcmd; /* Setup CSPs accordingly for Fabric */ sp->cmn.e_d_tov = 0; sp->cmn.w2.r_a_tov = 0; sp->cls1.classValid = 0; sp->cls2.seqDelivery = 1; sp->cls3.seqDelivery = 1; pcmd += sizeof(uint32_t); /* CSP Word 2 */ pcmd += sizeof(uint32_t); /* CSP Word 3 */ pcmd += sizeof(uint32_t); /* CSP Word 4 */ pcmd += sizeof(uint32_t); /* Port Name */ memcpy(pcmd, &vport->fc_portname, 8); pcmd += sizeof(uint32_t); /* Node Name */ pcmd += sizeof(uint32_t); /* Node Name */ memcpy(pcmd, &vport->fc_nodename, 8); lpfc_set_disctmo(vport); phba->fc_stat.elsXmitFDISC++; elsiocb->iocb_cmpl = lpfc_cmpl_els_fdisc; lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, "Issue FDISC: did:x%x", did, 0, 0); rc = lpfc_issue_fabric_iocb(phba, elsiocb); if (rc == IOCB_ERROR) { lpfc_els_free_iocb(phba, elsiocb); lpfc_vport_set_state(vport, FC_VPORT_FAILED); lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS, "0256 Issue FDISC: Cannot send IOCB\n"); return 1; } lpfc_vport_set_state(vport, FC_VPORT_INITIALIZING); vport->port_state = LPFC_FDISC; return 0; } static void lpfc_cmpl_els_npiv_logo(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb, struct lpfc_iocbq *rspiocb) { struct lpfc_vport *vport = cmdiocb->vport; IOCB_t *irsp; irsp = &rspiocb->iocb; lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, "LOGO npiv cmpl: status:x%x/x%x did:x%x", irsp->ulpStatus, irsp->un.ulpWord[4], irsp->un.rcvels.remoteID); lpfc_els_free_iocb(phba, cmdiocb); vport->unreg_vpi_cmpl = VPORT_ERROR; } int lpfc_issue_els_npiv_logo(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp) { struct Scsi_Host *shost = lpfc_shost_from_vport(vport); struct lpfc_hba *phba = vport->phba; struct lpfc_sli_ring *pring = &phba->sli.ring[LPFC_ELS_RING]; IOCB_t *icmd; struct lpfc_iocbq *elsiocb; uint8_t *pcmd; uint16_t cmdsize; cmdsize = 2 * sizeof(uint32_t) + sizeof(struct lpfc_name); elsiocb = lpfc_prep_els_iocb(vport, 1, cmdsize, 0, ndlp, ndlp->nlp_DID, ELS_CMD_LOGO); if (!elsiocb) return 1; icmd = &elsiocb->iocb; pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt); *((uint32_t *) (pcmd)) = ELS_CMD_LOGO; pcmd += sizeof(uint32_t); /* Fill in LOGO payload */ *((uint32_t *) (pcmd)) = be32_to_cpu(vport->fc_myDID); pcmd += sizeof(uint32_t); memcpy(pcmd, &vport->fc_portname, sizeof(struct lpfc_name)); lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, "Issue LOGO npiv did:x%x flg:x%x", ndlp->nlp_DID, ndlp->nlp_flag, 0); elsiocb->iocb_cmpl = lpfc_cmpl_els_npiv_logo; spin_lock_irq(shost->host_lock); ndlp->nlp_flag |= NLP_LOGO_SND; spin_unlock_irq(shost->host_lock); if (lpfc_sli_issue_iocb(phba, pring, elsiocb, 0) == IOCB_ERROR) { spin_lock_irq(shost->host_lock); ndlp->nlp_flag &= ~NLP_LOGO_SND; spin_unlock_irq(shost->host_lock); lpfc_els_free_iocb(phba, elsiocb); return 1; } return 0; } void lpfc_fabric_block_timeout(unsigned long ptr) { struct lpfc_hba *phba = (struct lpfc_hba *) ptr; unsigned long iflags; uint32_t tmo_posted; spin_lock_irqsave(&phba->pport->work_port_lock, iflags); tmo_posted = phba->pport->work_port_events & WORKER_FABRIC_BLOCK_TMO; if (!tmo_posted) phba->pport->work_port_events |= WORKER_FABRIC_BLOCK_TMO; spin_unlock_irqrestore(&phba->pport->work_port_lock, iflags); if (!tmo_posted) { spin_lock_irqsave(&phba->hbalock, iflags); if (phba->work_wait) lpfc_worker_wake_up(phba); spin_unlock_irqrestore(&phba->hbalock, iflags); } } static void lpfc_resume_fabric_iocbs(struct lpfc_hba *phba) { struct lpfc_iocbq *iocb; unsigned long iflags; int ret; struct lpfc_sli_ring *pring = &phba->sli.ring[LPFC_ELS_RING]; IOCB_t *cmd; repeat: iocb = NULL; spin_lock_irqsave(&phba->hbalock, iflags); /* Post any pending iocb to the SLI layer */ if (atomic_read(&phba->fabric_iocb_count) == 0) { list_remove_head(&phba->fabric_iocb_list, iocb, typeof(*iocb), list); if (iocb) atomic_inc(&phba->fabric_iocb_count); } spin_unlock_irqrestore(&phba->hbalock, iflags); if (iocb) { iocb->fabric_iocb_cmpl = iocb->iocb_cmpl; iocb->iocb_cmpl = lpfc_cmpl_fabric_iocb; iocb->iocb_flag |= LPFC_IO_FABRIC; lpfc_debugfs_disc_trc(iocb->vport, LPFC_DISC_TRC_ELS_CMD, "Fabric sched1: ste:x%x", iocb->vport->port_state, 0, 0); ret = lpfc_sli_issue_iocb(phba, pring, iocb, 0); if (ret == IOCB_ERROR) { iocb->iocb_cmpl = iocb->fabric_iocb_cmpl; iocb->fabric_iocb_cmpl = NULL; iocb->iocb_flag &= ~LPFC_IO_FABRIC; cmd = &iocb->iocb; cmd->ulpStatus = IOSTAT_LOCAL_REJECT; cmd->un.ulpWord[4] = IOERR_SLI_ABORTED; iocb->iocb_cmpl(phba, iocb, iocb); atomic_dec(&phba->fabric_iocb_count); goto repeat; } } return; } void lpfc_unblock_fabric_iocbs(struct lpfc_hba *phba) { clear_bit(FABRIC_COMANDS_BLOCKED, &phba->bit_flags); lpfc_resume_fabric_iocbs(phba); return; } static void lpfc_block_fabric_iocbs(struct lpfc_hba *phba) { int blocked; blocked = test_and_set_bit(FABRIC_COMANDS_BLOCKED, &phba->bit_flags); /* Start a timer to unblock fabric * iocbs after 100ms */ if (!blocked) mod_timer(&phba->fabric_block_timer, jiffies + HZ/10 ); return; } static void lpfc_cmpl_fabric_iocb(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb, struct lpfc_iocbq *rspiocb) { struct ls_rjt stat; if ((cmdiocb->iocb_flag & LPFC_IO_FABRIC) != LPFC_IO_FABRIC) BUG(); switch (rspiocb->iocb.ulpStatus) { case IOSTAT_NPORT_RJT: case IOSTAT_FABRIC_RJT: if (rspiocb->iocb.un.ulpWord[4] & RJT_UNAVAIL_TEMP) { lpfc_block_fabric_iocbs(phba); } break; case IOSTAT_NPORT_BSY: case IOSTAT_FABRIC_BSY: lpfc_block_fabric_iocbs(phba); break; case IOSTAT_LS_RJT: stat.un.lsRjtError = be32_to_cpu(rspiocb->iocb.un.ulpWord[4]); if ((stat.un.b.lsRjtRsnCode == LSRJT_UNABLE_TPC) || (stat.un.b.lsRjtRsnCode == LSRJT_LOGICAL_BSY)) lpfc_block_fabric_iocbs(phba); break; } if (atomic_read(&phba->fabric_iocb_count) == 0) BUG(); cmdiocb->iocb_cmpl = cmdiocb->fabric_iocb_cmpl; cmdiocb->fabric_iocb_cmpl = NULL; cmdiocb->iocb_flag &= ~LPFC_IO_FABRIC; cmdiocb->iocb_cmpl(phba, cmdiocb, rspiocb); atomic_dec(&phba->fabric_iocb_count); if (!test_bit(FABRIC_COMANDS_BLOCKED, &phba->bit_flags)) { /* Post any pending iocbs to HBA */ lpfc_resume_fabric_iocbs(phba); } } int lpfc_issue_fabric_iocb(struct lpfc_hba *phba, struct lpfc_iocbq *iocb) { unsigned long iflags; struct lpfc_sli_ring *pring = &phba->sli.ring[LPFC_ELS_RING]; int ready; int ret; if (atomic_read(&phba->fabric_iocb_count) > 1) BUG(); spin_lock_irqsave(&phba->hbalock, iflags); ready = atomic_read(&phba->fabric_iocb_count) == 0 && !test_bit(FABRIC_COMANDS_BLOCKED, &phba->bit_flags); spin_unlock_irqrestore(&phba->hbalock, iflags); if (ready) { iocb->fabric_iocb_cmpl = iocb->iocb_cmpl; iocb->iocb_cmpl = lpfc_cmpl_fabric_iocb; iocb->iocb_flag |= LPFC_IO_FABRIC; lpfc_debugfs_disc_trc(iocb->vport, LPFC_DISC_TRC_ELS_CMD, "Fabric sched2: ste:x%x", iocb->vport->port_state, 0, 0); atomic_inc(&phba->fabric_iocb_count); ret = lpfc_sli_issue_iocb(phba, pring, iocb, 0); if (ret == IOCB_ERROR) { iocb->iocb_cmpl = iocb->fabric_iocb_cmpl; iocb->fabric_iocb_cmpl = NULL; iocb->iocb_flag &= ~LPFC_IO_FABRIC; atomic_dec(&phba->fabric_iocb_count); } } else { spin_lock_irqsave(&phba->hbalock, iflags); list_add_tail(&iocb->list, &phba->fabric_iocb_list); spin_unlock_irqrestore(&phba->hbalock, iflags); ret = IOCB_SUCCESS; } return ret; } void lpfc_fabric_abort_vport(struct lpfc_vport *vport) { LIST_HEAD(completions); struct lpfc_hba *phba = vport->phba; struct lpfc_iocbq *tmp_iocb, *piocb; IOCB_t *cmd; spin_lock_irq(&phba->hbalock); list_for_each_entry_safe(piocb, tmp_iocb, &phba->fabric_iocb_list, list) { if (piocb->vport != vport) continue; list_move_tail(&piocb->list, &completions); } spin_unlock_irq(&phba->hbalock); while (!list_empty(&completions)) { piocb = list_get_first(&completions, struct lpfc_iocbq, list); list_del_init(&piocb->list); cmd = &piocb->iocb; cmd->ulpStatus = IOSTAT_LOCAL_REJECT; cmd->un.ulpWord[4] = IOERR_SLI_ABORTED; (piocb->iocb_cmpl) (phba, piocb, piocb); } } void lpfc_fabric_abort_nport(struct lpfc_nodelist *ndlp) { LIST_HEAD(completions); struct lpfc_hba *phba = ndlp->vport->phba; struct lpfc_iocbq *tmp_iocb, *piocb; struct lpfc_sli_ring *pring = &phba->sli.ring[LPFC_ELS_RING]; IOCB_t *cmd; spin_lock_irq(&phba->hbalock); list_for_each_entry_safe(piocb, tmp_iocb, &phba->fabric_iocb_list, list) { if ((lpfc_check_sli_ndlp(phba, pring, piocb, ndlp))) { list_move_tail(&piocb->list, &completions); } } spin_unlock_irq(&phba->hbalock); while (!list_empty(&completions)) { piocb = list_get_first(&completions, struct lpfc_iocbq, list); list_del_init(&piocb->list); cmd = &piocb->iocb; cmd->ulpStatus = IOSTAT_LOCAL_REJECT; cmd->un.ulpWord[4] = IOERR_SLI_ABORTED; (piocb->iocb_cmpl) (phba, piocb, piocb); } } void lpfc_fabric_abort_hba(struct lpfc_hba *phba) { LIST_HEAD(completions); struct lpfc_iocbq *piocb; IOCB_t *cmd; spin_lock_irq(&phba->hbalock); list_splice_init(&phba->fabric_iocb_list, &completions); spin_unlock_irq(&phba->hbalock); while (!list_empty(&completions)) { piocb = list_get_first(&completions, struct lpfc_iocbq, list); list_del_init(&piocb->list); cmd = &piocb->iocb; cmd->ulpStatus = IOSTAT_LOCAL_REJECT; cmd->un.ulpWord[4] = IOERR_SLI_ABORTED; (piocb->iocb_cmpl) (phba, piocb, piocb); } } void lpfc_fabric_abort_flogi(struct lpfc_hba *phba) { LIST_HEAD(completions); struct lpfc_iocbq *tmp_iocb, *piocb; IOCB_t *cmd; struct lpfc_nodelist *ndlp; spin_lock_irq(&phba->hbalock); list_for_each_entry_safe(piocb, tmp_iocb, &phba->fabric_iocb_list, list) { cmd = &piocb->iocb; ndlp = (struct lpfc_nodelist *) piocb->context1; if (cmd->ulpCommand == CMD_ELS_REQUEST64_CR && ndlp != NULL && ndlp->nlp_DID == Fabric_DID) list_move_tail(&piocb->list, &completions); } spin_unlock_irq(&phba->hbalock); while (!list_empty(&completions)) { piocb = list_get_first(&completions, struct lpfc_iocbq, list); list_del_init(&piocb->list); cmd = &piocb->iocb; cmd->ulpStatus = IOSTAT_LOCAL_REJECT; cmd->un.ulpWord[4] = IOERR_SLI_ABORTED; (piocb->iocb_cmpl) (phba, piocb, piocb); } }