/******************************************************************* * This file is part of the Emulex Linux Device Driver for * * Enterprise Fibre Channel Host Bus Adapters. * * Refer to the README file included with this package for * * driver version and adapter support. * * Copyright (C) 2004 Emulex Corporation. * * www.emulex.com * * * * This program is free software; you can redistribute it and/or * * modify it under the terms of the GNU General Public License * * as published by the Free Software Foundation; either version 2 * * of the License, or (at your option) any later version. * * * * This program is distributed in the hope that it will be useful, * * but WITHOUT ANY WARRANTY; without even the implied warranty of * * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. 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 "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" static int lpfc_els_retry(struct lpfc_hba *, struct lpfc_iocbq *, struct lpfc_iocbq *); static int lpfc_max_els_tries = 3; static int lpfc_els_chk_latt(struct lpfc_hba * phba) { struct lpfc_sli *psli; LPFC_MBOXQ_t *mbox; uint32_t ha_copy; int rc; psli = &phba->sli; if ((phba->hba_state >= LPFC_HBA_READY) || (phba->hba_state == LPFC_LINK_DOWN)) return 0; /* Read the HBA Host Attention Register */ spin_lock_irq(phba->host->host_lock); ha_copy = readl(phba->HAregaddr); spin_unlock_irq(phba->host->host_lock); if (!(ha_copy & HA_LATT)) return 0; /* Pending Link Event during Discovery */ lpfc_printf_log(phba, KERN_WARNING, LOG_DISCOVERY, "%d:0237 Pending Link Event during " "Discovery: State x%x\n", phba->brd_no, phba->hba_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(phba->host->host_lock); phba->fc_flag |= FC_ABORT_DISCOVERY; spin_unlock_irq(phba->host->host_lock); if (phba->hba_state != LPFC_CLEAR_LA) { if ((mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL))) { phba->hba_state = LPFC_CLEAR_LA; lpfc_clear_la(phba, mbox); mbox->mbox_cmpl = lpfc_mbx_cmpl_clear_la; rc = lpfc_sli_issue_mbox (phba, mbox, (MBX_NOWAIT | MBX_STOP_IOCB)); if (rc == MBX_NOT_FINISHED) { mempool_free(mbox, phba->mbox_mem_pool); phba->hba_state = LPFC_HBA_ERROR; } } } return (1); } static struct lpfc_iocbq * lpfc_prep_els_iocb(struct lpfc_hba * phba, uint8_t expectRsp, uint16_t cmdSize, uint8_t retry, struct lpfc_nodelist * ndlp, uint32_t elscmd) { struct list_head *lpfc_iocb_list = &phba->lpfc_iocb_list; struct lpfc_sli_ring *pring; struct lpfc_iocbq *elsiocb = NULL; struct lpfc_dmabuf *pcmd, *prsp, *pbuflist; struct ulp_bde64 *bpl; IOCB_t *icmd; pring = &phba->sli.ring[LPFC_ELS_RING]; if (phba->hba_state < LPFC_LINK_UP) return NULL; /* Allocate buffer for command iocb */ spin_lock_irq(phba->host->host_lock); list_remove_head(lpfc_iocb_list, elsiocb, struct lpfc_iocbq, list); spin_unlock_irq(phba->host->host_lock); if (elsiocb == NULL) return NULL; memset(elsiocb, 0, sizeof (struct lpfc_iocbq)); 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)) { if (pcmd) kfree(pcmd); list_add_tail(&elsiocb->list, lpfc_iocb_list); 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) { if (prsp) kfree(prsp); lpfc_mbuf_free(phba, pcmd->virt, pcmd->phys); kfree(pcmd); list_add_tail(&elsiocb->list, lpfc_iocb_list); 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) { list_add_tail(&elsiocb->list, lpfc_iocb_list); lpfc_mbuf_free(phba, pcmd->virt, pcmd->phys); lpfc_mbuf_free(phba, prsp->virt, prsp->phys); kfree(pcmd); kfree(prsp); if (pbuflist) 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; if (expectRsp) { icmd->un.elsreq64.bdl.bdeSize = (2 * sizeof (struct ulp_bde64)); icmd->un.elsreq64.remoteID = ndlp->nlp_DID; /* DID */ icmd->ulpCommand = CMD_ELS_REQUEST64_CR; } 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; 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); } /* Save for completion so we can release these resources */ elsiocb->context1 = (uint8_t *) ndlp; elsiocb->context2 = (uint8_t *) pcmd; elsiocb->context3 = (uint8_t *) pbuflist; elsiocb->retry = retry; 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_log(phba, KERN_INFO, LOG_ELS, "%d:0116 Xmit ELS command x%x to remote " "NPORT x%x Data: x%x x%x\n", phba->brd_no, elscmd, ndlp->nlp_DID, icmd->ulpIoTag, phba->hba_state); } else { /* Xmit ELS response to remote NPORT */ lpfc_printf_log(phba, KERN_INFO, LOG_ELS, "%d:0117 Xmit ELS response x%x to remote " "NPORT x%x Data: x%x x%x\n", phba->brd_no, elscmd, ndlp->nlp_DID, icmd->ulpIoTag, cmdSize); } return (elsiocb); } static int lpfc_cmpl_els_flogi_fabric(struct lpfc_hba *phba, struct lpfc_nodelist *ndlp, struct serv_parm *sp, IOCB_t *irsp) { LPFC_MBOXQ_t *mbox; int rc; spin_lock_irq(phba->host->host_lock); phba->fc_flag |= FC_FABRIC; spin_unlock_irq(phba->host->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(phba->host->host_lock); phba->fc_flag |= FC_PUBLIC_LOOP; spin_unlock_irq(phba->host->host_lock); } else { /* * If we are a N-port connected to a Fabric, fixup sparam's so * logins to devices on remote loops work. */ phba->fc_sparam.cmn.altBbCredit = 1; } phba->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)); mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); if (!mbox) goto fail; phba->hba_state = LPFC_FABRIC_CFG_LINK; lpfc_config_link(phba, mbox); mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl; rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT | MBX_STOP_IOCB); if (rc == MBX_NOT_FINISHED) goto fail_free_mbox; mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); if (!mbox) goto fail; if (lpfc_reg_login(phba, Fabric_DID, (uint8_t *) sp, mbox, 0)) goto fail_free_mbox; /* * set_slim mailbox command needs to execute first, * queue this command to be processed later. */ mbox->mbox_cmpl = lpfc_mbx_cmpl_fabric_reg_login; mbox->context2 = ndlp; rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT | MBX_STOP_IOCB); if (rc == MBX_NOT_FINISHED) goto fail_free_mbox; return 0; fail_free_mbox: mempool_free(mbox, phba->mbox_mem_pool); fail: return -ENXIO; } /* * We FLOGIed into an NPort, initiate pt2pt protocol */ static int lpfc_cmpl_els_flogi_nport(struct lpfc_hba *phba, struct lpfc_nodelist *ndlp, struct serv_parm *sp) { LPFC_MBOXQ_t *mbox; int rc; spin_lock_irq(phba->host->host_lock); phba->fc_flag &= ~(FC_FABRIC | FC_PUBLIC_LOOP); spin_unlock_irq(phba->host->host_lock); phba->fc_edtov = FF_DEF_EDTOV; phba->fc_ratov = FF_DEF_RATOV; rc = memcmp(&phba->fc_portname, &sp->portName, sizeof(struct lpfc_name)); if (rc >= 0) { /* This side will initiate the PLOGI */ spin_lock_irq(phba->host->host_lock); phba->fc_flag |= FC_PT2PT_PLOGI; spin_unlock_irq(phba->host->host_lock); /* * N_Port ID cannot be 0, set our to LocalID the other * side will be RemoteID. */ /* not equal */ if (rc) phba->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; rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT | MBX_STOP_IOCB); if (rc == MBX_NOT_FINISHED) { mempool_free(mbox, phba->mbox_mem_pool); goto fail; } mempool_free(ndlp, phba->nlp_mem_pool); ndlp = lpfc_findnode_did(phba, NLP_SEARCH_ALL, 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(phba, ndlp, PT2PT_RemoteID); } memcpy(&ndlp->nlp_portname, &sp->portName, sizeof(struct lpfc_name)); memcpy(&ndlp->nlp_nodename, &sp->nodeName, sizeof(struct lpfc_name)); ndlp->nlp_state = NLP_STE_NPR_NODE; lpfc_nlp_list(phba, ndlp, NLP_NPR_LIST); ndlp->nlp_flag |= NLP_NPR_2B_DISC; } else { /* This side will wait for the PLOGI */ mempool_free( ndlp, phba->nlp_mem_pool); } spin_lock_irq(phba->host->host_lock); phba->fc_flag |= FC_PT2PT; spin_unlock_irq(phba->host->host_lock); /* Start discovery - this should just do CLEAR_LA */ lpfc_disc_start(phba); return 0; fail: return -ENXIO; } static void lpfc_cmpl_els_flogi(struct lpfc_hba * phba, struct lpfc_iocbq * cmdiocb, struct lpfc_iocbq * rspiocb) { 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(phba)) { lpfc_nlp_remove(phba, ndlp); goto out; } if (irsp->ulpStatus) { /* Check for retry */ if (lpfc_els_retry(phba, cmdiocb, rspiocb)) { /* ELS command is being retried */ goto out; } /* FLOGI failed, so there is no fabric */ spin_lock_irq(phba->host->host_lock); phba->fc_flag &= ~(FC_FABRIC | FC_PUBLIC_LOOP); spin_unlock_irq(phba->host->host_lock); /* If private loop, then allow max outstandting 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) { phba->cfg_discovery_threads = LPFC_MAX_DISC_THREADS; } /* FLOGI failure */ lpfc_printf_log(phba, KERN_INFO, LOG_ELS, "%d:0100 FLOGI failure Data: x%x x%x\n", phba->brd_no, irsp->ulpStatus, irsp->un.ulpWord[4]); 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_log(phba, KERN_INFO, LOG_ELS, "%d:0101 FLOGI completes sucessfully " "Data: x%x x%x x%x x%x\n", phba->brd_no, irsp->un.ulpWord[4], sp->cmn.e_d_tov, sp->cmn.w2.r_a_tov, sp->cmn.edtovResolution); if (phba->hba_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(phba, ndlp, sp, irsp); else rc = lpfc_cmpl_els_flogi_nport(phba, ndlp, sp); if (!rc) goto out; } flogifail: lpfc_nlp_remove(phba, ndlp); if (irsp->ulpStatus != IOSTAT_LOCAL_REJECT || (irsp->un.ulpWord[4] != IOERR_SLI_ABORTED && irsp->un.ulpWord[4] != IOERR_SLI_DOWN)) { /* FLOGI failed, so just use loop map to make discovery list */ lpfc_disc_list_loopmap(phba); /* Start discovery */ lpfc_disc_start(phba); } out: lpfc_els_free_iocb(phba, cmdiocb); } static int lpfc_issue_els_flogi(struct lpfc_hba * phba, struct lpfc_nodelist * ndlp, uint8_t retry) { 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)); if ((elsiocb = lpfc_prep_els_iocb(phba, 1, cmdsize, retry, ndlp, ELS_CMD_FLOGI)) == 0) { 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, &phba->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; tmo = phba->fc_ratov; phba->fc_ratov = LPFC_DISC_FLOGI_TMO; lpfc_set_disctmo(phba); phba->fc_ratov = tmo; phba->fc_stat.elsXmitFLOGI++; elsiocb->iocb_cmpl = lpfc_cmpl_els_flogi; spin_lock_irq(phba->host->host_lock); rc = lpfc_sli_issue_iocb(phba, pring, elsiocb, 0); spin_unlock_irq(phba->host->host_lock); 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, "%d:0201 Abort outstanding I/O on NPort x%x\n", phba->brd_no, 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->host->host_lock); list_for_each_entry_safe(iocb, next_iocb, &pring->txcmplq, list) { icmd = &iocb->iocb; if (icmd->ulpCommand == CMD_ELS_REQUEST64_CR) { ndlp = (struct lpfc_nodelist *)(iocb->context1); if (ndlp && (ndlp->nlp_DID == Fabric_DID)) { list_del(&iocb->list); pring->txcmplq_cnt--; if ((icmd->un.elsreq64.bdl.ulpIoTag32)) { lpfc_sli_issue_abort_iotag32 (phba, pring, iocb); } if (iocb->iocb_cmpl) { icmd->ulpStatus = IOSTAT_LOCAL_REJECT; icmd->un.ulpWord[4] = IOERR_SLI_ABORTED; spin_unlock_irq(phba->host->host_lock); (iocb->iocb_cmpl) (phba, iocb, iocb); spin_lock_irq(phba->host->host_lock); } else { list_add_tail(&iocb->list, &phba->lpfc_iocb_list); } } } } spin_unlock_irq(phba->host->host_lock); return 0; } int lpfc_initial_flogi(struct lpfc_hba * phba) { struct lpfc_nodelist *ndlp; /* First look for Fabric ndlp on the unmapped list */ if ((ndlp = lpfc_findnode_did(phba, NLP_SEARCH_UNMAPPED, Fabric_DID)) == 0) { /* Cannot find existing Fabric ndlp, so allocate a new one */ if ((ndlp = mempool_alloc(phba->nlp_mem_pool, GFP_KERNEL)) == 0) { return (0); } lpfc_nlp_init(phba, ndlp, Fabric_DID); } else { phba->fc_unmap_cnt--; list_del(&ndlp->nlp_listp); spin_lock_irq(phba->host->host_lock); ndlp->nlp_flag &= ~NLP_LIST_MASK; spin_unlock_irq(phba->host->host_lock); } if (lpfc_issue_els_flogi(phba, ndlp, 0)) { mempool_free( ndlp, phba->nlp_mem_pool); } return (1); } static void lpfc_more_plogi(struct lpfc_hba * phba) { int sentplogi; if (phba->num_disc_nodes) phba->num_disc_nodes--; /* Continue discovery with PLOGIs to go */ lpfc_printf_log(phba, KERN_INFO, LOG_DISCOVERY, "%d:0232 Continue discovery with %d PLOGIs to go " "Data: x%x x%x x%x\n", phba->brd_no, phba->num_disc_nodes, phba->fc_plogi_cnt, phba->fc_flag, phba->hba_state); /* Check to see if there are more PLOGIs to be sent */ if (phba->fc_flag & FC_NLP_MORE) { /* go thru NPR list and issue any remaining ELS PLOGIs */ sentplogi = lpfc_els_disc_plogi(phba); } return; } static void lpfc_cmpl_els_plogi(struct lpfc_hba * phba, struct lpfc_iocbq * cmdiocb, struct lpfc_iocbq * rspiocb) { IOCB_t *irsp; struct lpfc_sli *psli; struct lpfc_nodelist *ndlp; int disc, rc, did, type; 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(phba->host->host_lock); ndlp->nlp_flag &= ~NLP_PLOGI_SND; spin_unlock_irq(phba->host->host_lock); /* Since ndlp can be freed in the disc state machine, note if this node * is being used during discovery. */ disc = (ndlp->nlp_flag & NLP_NPR_2B_DISC); rc = 0; /* PLOGI completes to NPort */ lpfc_printf_log(phba, KERN_INFO, LOG_ELS, "%d:0102 PLOGI completes to NPort x%x " "Data: x%x x%x x%x x%x\n", phba->brd_no, ndlp->nlp_DID, irsp->ulpStatus, irsp->un.ulpWord[4], disc, phba->num_disc_nodes); /* Check to see if link went down during discovery */ if (lpfc_els_chk_latt(phba)) { spin_lock_irq(phba->host->host_lock); ndlp->nlp_flag |= NLP_NPR_2B_DISC; spin_unlock_irq(phba->host->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(phba->host->host_lock); ndlp->nlp_flag |= NLP_NPR_2B_DISC; spin_unlock_irq(phba->host->host_lock); } goto out; } /* PLOGI failed */ /* Do not call DSM for lpfc_els_abort'ed ELS cmds */ if ((irsp->ulpStatus == IOSTAT_LOCAL_REJECT) && ((irsp->un.ulpWord[4] == IOERR_SLI_ABORTED) || (irsp->un.ulpWord[4] == IOERR_SLI_DOWN))) { disc = (ndlp->nlp_flag & NLP_NPR_2B_DISC); } else { rc = lpfc_disc_state_machine(phba, ndlp, cmdiocb, NLP_EVT_CMPL_PLOGI); } } else { /* Good status, call state machine */ rc = lpfc_disc_state_machine(phba, ndlp, cmdiocb, NLP_EVT_CMPL_PLOGI); } if (type & NLP_FABRIC) { /* If we cannot login to Nameserver, kick off discovery now */ if ((did == NameServer_DID) && (rc == NLP_STE_FREED_NODE)) { lpfc_disc_start(phba); } goto out; } if (disc && phba->num_disc_nodes) { /* Check to see if there are more PLOGIs to be sent */ lpfc_more_plogi(phba); } if (rc != NLP_STE_FREED_NODE) { spin_lock_irq(phba->host->host_lock); ndlp->nlp_flag &= ~NLP_NPR_2B_DISC; spin_unlock_irq(phba->host->host_lock); } if (phba->num_disc_nodes == 0) { if(disc) { spin_lock_irq(phba->host->host_lock); phba->fc_flag &= ~FC_NDISC_ACTIVE; spin_unlock_irq(phba->host->host_lock); } lpfc_can_disctmo(phba); if (phba->fc_flag & FC_RSCN_MODE) { /* Check to see if more RSCNs came in while we were * processing this one. */ if ((phba->fc_rscn_id_cnt == 0) && (!(phba->fc_flag & FC_RSCN_DISCOVERY))) { spin_lock_irq(phba->host->host_lock); phba->fc_flag &= ~FC_RSCN_MODE; spin_unlock_irq(phba->host->host_lock); } else { lpfc_els_handle_rscn(phba); } } } out: lpfc_els_free_iocb(phba, cmdiocb); return; } int lpfc_issue_els_plogi(struct lpfc_hba * phba, struct lpfc_nodelist * ndlp, uint8_t retry) { 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; psli = &phba->sli; pring = &psli->ring[LPFC_ELS_RING]; /* ELS ring */ cmdsize = (sizeof (uint32_t) + sizeof (struct serv_parm)); if ((elsiocb = lpfc_prep_els_iocb(phba, 1, cmdsize, retry, ndlp, ELS_CMD_PLOGI)) == 0) { 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, &phba->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; phba->fc_stat.elsXmitPLOGI++; elsiocb->iocb_cmpl = lpfc_cmpl_els_plogi; spin_lock_irq(phba->host->host_lock); ndlp->nlp_flag |= NLP_PLOGI_SND; if (lpfc_sli_issue_iocb(phba, pring, elsiocb, 0) == IOCB_ERROR) { ndlp->nlp_flag &= ~NLP_PLOGI_SND; spin_unlock_irq(phba->host->host_lock); lpfc_els_free_iocb(phba, elsiocb); return (1); } spin_unlock_irq(phba->host->host_lock); return (0); } static void lpfc_cmpl_els_prli(struct lpfc_hba * phba, struct lpfc_iocbq * cmdiocb, struct lpfc_iocbq * rspiocb) { 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(phba->host->host_lock); ndlp->nlp_flag &= ~NLP_PRLI_SND; spin_unlock_irq(phba->host->host_lock); /* PRLI completes to NPort */ lpfc_printf_log(phba, KERN_INFO, LOG_ELS, "%d:0103 PRLI completes to NPort x%x " "Data: x%x x%x x%x\n", phba->brd_no, ndlp->nlp_DID, irsp->ulpStatus, irsp->un.ulpWord[4], phba->num_disc_nodes); phba->fc_prli_sent--; /* Check to see if link went down during discovery */ if (lpfc_els_chk_latt(phba)) 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 ((irsp->ulpStatus == IOSTAT_LOCAL_REJECT) && ((irsp->un.ulpWord[4] == IOERR_SLI_ABORTED) || (irsp->un.ulpWord[4] == IOERR_SLI_DOWN))) { goto out; } else { lpfc_disc_state_machine(phba, ndlp, cmdiocb, NLP_EVT_CMPL_PRLI); } } else { /* Good status, call state machine */ lpfc_disc_state_machine(phba, ndlp, cmdiocb, NLP_EVT_CMPL_PRLI); } out: lpfc_els_free_iocb(phba, cmdiocb); return; } int lpfc_issue_els_prli(struct lpfc_hba * phba, struct lpfc_nodelist * ndlp, uint8_t retry) { 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)); if ((elsiocb = lpfc_prep_els_iocb(phba, 1, cmdsize, retry, ndlp, ELS_CMD_PRLI)) == 0) { 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; phba->fc_stat.elsXmitPRLI++; elsiocb->iocb_cmpl = lpfc_cmpl_els_prli; spin_lock_irq(phba->host->host_lock); ndlp->nlp_flag |= NLP_PRLI_SND; if (lpfc_sli_issue_iocb(phba, pring, elsiocb, 0) == IOCB_ERROR) { ndlp->nlp_flag &= ~NLP_PRLI_SND; spin_unlock_irq(phba->host->host_lock); lpfc_els_free_iocb(phba, elsiocb); return (1); } spin_unlock_irq(phba->host->host_lock); phba->fc_prli_sent++; return (0); } static void lpfc_more_adisc(struct lpfc_hba * phba) { int sentadisc; if (phba->num_disc_nodes) phba->num_disc_nodes--; /* Continue discovery with ADISCs to go */ lpfc_printf_log(phba, KERN_INFO, LOG_DISCOVERY, "%d:0210 Continue discovery with %d ADISCs to go " "Data: x%x x%x x%x\n", phba->brd_no, phba->num_disc_nodes, phba->fc_adisc_cnt, phba->fc_flag, phba->hba_state); /* Check to see if there are more ADISCs to be sent */ if (phba->fc_flag & FC_NLP_MORE) { lpfc_set_disctmo(phba); /* go thru NPR list and issue any remaining ELS ADISCs */ sentadisc = lpfc_els_disc_adisc(phba); } return; } static void lpfc_rscn_disc(struct lpfc_hba * phba) { /* RSCN discovery */ /* go thru NPR list and issue ELS PLOGIs */ if (phba->fc_npr_cnt) { if (lpfc_els_disc_plogi(phba)) return; } if (phba->fc_flag & FC_RSCN_MODE) { /* Check to see if more RSCNs came in while we were * processing this one. */ if ((phba->fc_rscn_id_cnt == 0) && (!(phba->fc_flag & FC_RSCN_DISCOVERY))) { spin_lock_irq(phba->host->host_lock); phba->fc_flag &= ~FC_RSCN_MODE; spin_unlock_irq(phba->host->host_lock); } else { lpfc_els_handle_rscn(phba); } } } static void lpfc_cmpl_els_adisc(struct lpfc_hba * phba, struct lpfc_iocbq * cmdiocb, struct lpfc_iocbq * rspiocb) { IOCB_t *irsp; struct lpfc_sli *psli; struct lpfc_nodelist *ndlp; LPFC_MBOXQ_t *mbox; int disc, rc; 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(phba->host->host_lock); ndlp->nlp_flag &= ~NLP_ADISC_SND; spin_unlock_irq(phba->host->host_lock); /* Since ndlp can be freed in the disc state machine, note if this node * is being used during discovery. */ disc = (ndlp->nlp_flag & NLP_NPR_2B_DISC); /* ADISC completes to NPort */ lpfc_printf_log(phba, KERN_INFO, LOG_ELS, "%d:0104 ADISC completes to NPort x%x " "Data: x%x x%x x%x x%x\n", phba->brd_no, ndlp->nlp_DID, irsp->ulpStatus, irsp->un.ulpWord[4], disc, phba->num_disc_nodes); /* Check to see if link went down during discovery */ if (lpfc_els_chk_latt(phba)) { spin_lock_irq(phba->host->host_lock); ndlp->nlp_flag |= NLP_NPR_2B_DISC; spin_unlock_irq(phba->host->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(phba->host->host_lock); ndlp->nlp_flag |= NLP_NPR_2B_DISC; spin_unlock_irq(phba->host->host_lock); lpfc_set_disctmo(phba); } goto out; } /* ADISC failed */ /* Do not call DSM for lpfc_els_abort'ed ELS cmds */ if ((irsp->ulpStatus == IOSTAT_LOCAL_REJECT) && ((irsp->un.ulpWord[4] == IOERR_SLI_ABORTED) || (irsp->un.ulpWord[4] == IOERR_SLI_DOWN))) { disc = (ndlp->nlp_flag & NLP_NPR_2B_DISC); } else { lpfc_disc_state_machine(phba, ndlp, cmdiocb, NLP_EVT_CMPL_ADISC); } } else { /* Good status, call state machine */ lpfc_disc_state_machine(phba, ndlp, cmdiocb, NLP_EVT_CMPL_ADISC); } if (disc && phba->num_disc_nodes) { /* Check to see if there are more ADISCs to be sent */ lpfc_more_adisc(phba); /* Check to see if we are done with ADISC authentication */ if (phba->num_disc_nodes == 0) { lpfc_can_disctmo(phba); /* If we get here, there is nothing left to wait for */ if ((phba->hba_state < LPFC_HBA_READY) && (phba->hba_state != LPFC_CLEAR_LA)) { /* Link up discovery */ if ((mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL))) { phba->hba_state = LPFC_CLEAR_LA; lpfc_clear_la(phba, mbox); mbox->mbox_cmpl = lpfc_mbx_cmpl_clear_la; rc = lpfc_sli_issue_mbox (phba, mbox, (MBX_NOWAIT | MBX_STOP_IOCB)); if (rc == MBX_NOT_FINISHED) { mempool_free(mbox, phba->mbox_mem_pool); lpfc_disc_flush_list(phba); psli->ring[(psli->ip_ring)]. flag &= ~LPFC_STOP_IOCB_EVENT; psli->ring[(psli->fcp_ring)]. flag &= ~LPFC_STOP_IOCB_EVENT; psli->ring[(psli->next_ring)]. flag &= ~LPFC_STOP_IOCB_EVENT; phba->hba_state = LPFC_HBA_READY; } } } else { lpfc_rscn_disc(phba); } } } spin_lock_irq(phba->host->host_lock); ndlp->nlp_flag &= ~NLP_NPR_2B_DISC; spin_unlock_irq(phba->host->host_lock); out: lpfc_els_free_iocb(phba, cmdiocb); return; } int lpfc_issue_els_adisc(struct lpfc_hba * phba, struct lpfc_nodelist * ndlp, uint8_t retry) { ADISC *ap; 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 (ADISC)); if ((elsiocb = lpfc_prep_els_iocb(phba, 1, cmdsize, retry, ndlp, ELS_CMD_ADISC)) == 0) { 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, &phba->fc_portname, sizeof (struct lpfc_name)); memcpy(&ap->nodeName, &phba->fc_nodename, sizeof (struct lpfc_name)); ap->DID = be32_to_cpu(phba->fc_myDID); phba->fc_stat.elsXmitADISC++; elsiocb->iocb_cmpl = lpfc_cmpl_els_adisc; spin_lock_irq(phba->host->host_lock); ndlp->nlp_flag |= NLP_ADISC_SND; if (lpfc_sli_issue_iocb(phba, pring, elsiocb, 0) == IOCB_ERROR) { ndlp->nlp_flag &= ~NLP_ADISC_SND; spin_unlock_irq(phba->host->host_lock); lpfc_els_free_iocb(phba, elsiocb); return (1); } spin_unlock_irq(phba->host->host_lock); return (0); } static void lpfc_cmpl_els_logo(struct lpfc_hba * phba, struct lpfc_iocbq * cmdiocb, struct lpfc_iocbq * rspiocb) { 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(phba->host->host_lock); ndlp->nlp_flag &= ~NLP_LOGO_SND; spin_unlock_irq(phba->host->host_lock); /* LOGO completes to NPort */ lpfc_printf_log(phba, KERN_INFO, LOG_ELS, "%d:0105 LOGO completes to NPort x%x " "Data: x%x x%x x%x\n", phba->brd_no, ndlp->nlp_DID, irsp->ulpStatus, irsp->un.ulpWord[4], phba->num_disc_nodes); /* Check to see if link went down during discovery */ if (lpfc_els_chk_latt(phba)) 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 ((irsp->ulpStatus == IOSTAT_LOCAL_REJECT) && ((irsp->un.ulpWord[4] == IOERR_SLI_ABORTED) || (irsp->un.ulpWord[4] == IOERR_SLI_DOWN))) { goto out; } else { lpfc_disc_state_machine(phba, ndlp, cmdiocb, NLP_EVT_CMPL_LOGO); } } else { /* Good status, call state machine */ lpfc_disc_state_machine(phba, ndlp, cmdiocb, NLP_EVT_CMPL_LOGO); if (ndlp->nlp_flag & NLP_DELAY_TMO) { lpfc_unreg_rpi(phba, ndlp); } } out: lpfc_els_free_iocb(phba, cmdiocb); return; } int lpfc_issue_els_logo(struct lpfc_hba * phba, struct lpfc_nodelist * ndlp, uint8_t retry) { 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]; cmdsize = 2 * (sizeof (uint32_t) + sizeof (struct lpfc_name)); if ((elsiocb = lpfc_prep_els_iocb(phba, 1, cmdsize, retry, ndlp, ELS_CMD_LOGO)) == 0) { 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(phba->fc_myDID); pcmd += sizeof (uint32_t); memcpy(pcmd, &phba->fc_portname, sizeof (struct lpfc_name)); phba->fc_stat.elsXmitLOGO++; elsiocb->iocb_cmpl = lpfc_cmpl_els_logo; spin_lock_irq(phba->host->host_lock); ndlp->nlp_flag |= NLP_LOGO_SND; if (lpfc_sli_issue_iocb(phba, pring, elsiocb, 0) == IOCB_ERROR) { ndlp->nlp_flag &= ~NLP_LOGO_SND; spin_unlock_irq(phba->host->host_lock); lpfc_els_free_iocb(phba, elsiocb); return (1); } spin_unlock_irq(phba->host->host_lock); return (0); } static void lpfc_cmpl_els_cmd(struct lpfc_hba * phba, struct lpfc_iocbq * cmdiocb, struct lpfc_iocbq * rspiocb) { IOCB_t *irsp; irsp = &rspiocb->iocb; /* ELS cmd tag completes */ lpfc_printf_log(phba, KERN_INFO, LOG_ELS, "%d:0106 ELS cmd tag x%x completes Data: x%x x%x\n", phba->brd_no, irsp->ulpIoTag, irsp->ulpStatus, irsp->un.ulpWord[4]); /* Check to see if link went down during discovery */ lpfc_els_chk_latt(phba); lpfc_els_free_iocb(phba, cmdiocb); return; } int lpfc_issue_els_scr(struct lpfc_hba * phba, uint32_t nportid, uint8_t retry) { 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)); if ((ndlp = mempool_alloc(phba->nlp_mem_pool, GFP_KERNEL)) == 0) { return (1); } lpfc_nlp_init(phba, ndlp, nportid); if ((elsiocb = lpfc_prep_els_iocb(phba, 1, cmdsize, retry, ndlp, ELS_CMD_SCR)) == 0) { mempool_free( ndlp, phba->nlp_mem_pool); 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; phba->fc_stat.elsXmitSCR++; elsiocb->iocb_cmpl = lpfc_cmpl_els_cmd; spin_lock_irq(phba->host->host_lock); if (lpfc_sli_issue_iocb(phba, pring, elsiocb, 0) == IOCB_ERROR) { spin_unlock_irq(phba->host->host_lock); mempool_free( ndlp, phba->nlp_mem_pool); lpfc_els_free_iocb(phba, elsiocb); return (1); } spin_unlock_irq(phba->host->host_lock); mempool_free( ndlp, phba->nlp_mem_pool); return (0); } static int lpfc_issue_els_farpr(struct lpfc_hba * phba, uint32_t nportid, uint8_t retry) { 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)); if ((ndlp = mempool_alloc(phba->nlp_mem_pool, GFP_KERNEL)) == 0) { return (1); } lpfc_nlp_init(phba, ndlp, nportid); if ((elsiocb = lpfc_prep_els_iocb(phba, 1, cmdsize, retry, ndlp, ELS_CMD_RNID)) == 0) { mempool_free( ndlp, phba->nlp_mem_pool); 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(phba->fc_myDID); fp->Rflags = 0; fp->Mflags = (FARP_MATCH_PORT | FARP_MATCH_NODE); memcpy(&fp->RportName, &phba->fc_portname, sizeof (struct lpfc_name)); memcpy(&fp->RnodeName, &phba->fc_nodename, sizeof (struct lpfc_name)); if ((ondlp = lpfc_findnode_did(phba, NLP_SEARCH_ALL, nportid))) { memcpy(&fp->OportName, &ondlp->nlp_portname, sizeof (struct lpfc_name)); memcpy(&fp->OnodeName, &ondlp->nlp_nodename, sizeof (struct lpfc_name)); } phba->fc_stat.elsXmitFARPR++; elsiocb->iocb_cmpl = lpfc_cmpl_els_cmd; spin_lock_irq(phba->host->host_lock); if (lpfc_sli_issue_iocb(phba, pring, elsiocb, 0) == IOCB_ERROR) { spin_unlock_irq(phba->host->host_lock); mempool_free( ndlp, phba->nlp_mem_pool); lpfc_els_free_iocb(phba, elsiocb); return (1); } spin_unlock_irq(phba->host->host_lock); mempool_free( ndlp, phba->nlp_mem_pool); return (0); } void lpfc_els_retry_delay(unsigned long ptr) { struct lpfc_nodelist *ndlp; struct lpfc_hba *phba; unsigned long iflag; struct lpfc_work_evt *evtp; ndlp = (struct lpfc_nodelist *)ptr; phba = ndlp->nlp_phba; evtp = &ndlp->els_retry_evt; spin_lock_irqsave(phba->host->host_lock, iflag); if (!list_empty(&evtp->evt_listp)) { spin_unlock_irqrestore(phba->host->host_lock, iflag); return; } evtp->evt_arg1 = ndlp; evtp->evt = LPFC_EVT_ELS_RETRY; list_add_tail(&evtp->evt_listp, &phba->work_list); if (phba->work_wait) wake_up(phba->work_wait); spin_unlock_irqrestore(phba->host->host_lock, iflag); return; } void lpfc_els_retry_delay_handler(struct lpfc_nodelist *ndlp) { struct lpfc_hba *phba; uint32_t cmd; uint32_t did; uint8_t retry; phba = ndlp->nlp_phba; spin_lock_irq(phba->host->host_lock); did = (uint32_t) (ndlp->nlp_DID); cmd = (uint32_t) (ndlp->nlp_last_elscmd); if (!(ndlp->nlp_flag & NLP_DELAY_TMO)) { spin_unlock_irq(phba->host->host_lock); return; } ndlp->nlp_flag &= ~NLP_DELAY_TMO; spin_unlock_irq(phba->host->host_lock); retry = ndlp->nlp_retry; switch (cmd) { case ELS_CMD_FLOGI: lpfc_issue_els_flogi(phba, ndlp, retry); break; case ELS_CMD_PLOGI: ndlp->nlp_state = NLP_STE_PLOGI_ISSUE; lpfc_nlp_list(phba, ndlp, NLP_PLOGI_LIST); lpfc_issue_els_plogi(phba, ndlp, retry); break; case ELS_CMD_ADISC: ndlp->nlp_state = NLP_STE_ADISC_ISSUE; lpfc_nlp_list(phba, ndlp, NLP_ADISC_LIST); lpfc_issue_els_adisc(phba, ndlp, retry); break; case ELS_CMD_PRLI: ndlp->nlp_state = NLP_STE_PRLI_ISSUE; lpfc_nlp_list(phba, ndlp, NLP_PRLI_LIST); lpfc_issue_els_prli(phba, ndlp, retry); break; case ELS_CMD_LOGO: ndlp->nlp_state = NLP_STE_NPR_NODE; lpfc_nlp_list(phba, ndlp, NLP_NPR_LIST); lpfc_issue_els_logo(phba, ndlp, retry); break; } return; } static int lpfc_els_retry(struct lpfc_hba * phba, struct lpfc_iocbq * cmdiocb, struct lpfc_iocbq * rspiocb) { IOCB_t *irsp; struct lpfc_dmabuf *pcmd; struct lpfc_nodelist *ndlp; uint32_t *elscmd; struct ls_rjt stat; int retry, maxretry; int delay; uint32_t cmd; retry = 0; delay = 0; maxretry = lpfc_max_els_tries; irsp = &rspiocb->iocb; ndlp = (struct lpfc_nodelist *) cmdiocb->context1; pcmd = (struct lpfc_dmabuf *) cmdiocb->context2; cmd = 0; /* Note: context2 may be 0 for internal driver abort * of delays ELS command. */ if (pcmd && pcmd->virt) { elscmd = (uint32_t *) (pcmd->virt); cmd = *elscmd++; } 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) { if (cmdiocb->retry == 0) { delay = 1; } } retry = 1; break; case IOERR_SEQUENCE_TIMEOUT: retry = 1; if ((cmd == ELS_CMD_FLOGI) && (phba->fc_topology != TOPOLOGY_LOOP)) { delay = 1; maxretry = 48; } break; case IOERR_NO_RESOURCES: if (cmd == ELS_CMD_PLOGI) { delay = 1; } retry = 1; break; 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 = 1; maxretry = 48; } retry = 1; break; } if (cmd == ELS_CMD_PLOGI) { delay = 1; maxretry = lpfc_max_els_tries + 1; retry = 1; break; } break; case LSRJT_LOGICAL_BSY: if (cmd == ELS_CMD_PLOGI) { delay = 1; maxretry = 48; } retry = 1; break; } break; case IOSTAT_INTERMED_RSP: case IOSTAT_BA_RJT: break; default: break; } if (ndlp->nlp_DID == FDMI_DID) { retry = 1; } if ((++cmdiocb->retry) >= maxretry) { phba->fc_stat.elsRetryExceeded++; retry = 0; } if (retry) { /* Retry ELS command to remote NPORT */ lpfc_printf_log(phba, KERN_INFO, LOG_ELS, "%d:0107 Retry ELS command x%x to remote " "NPORT x%x Data: x%x x%x\n", phba->brd_no, cmd, ndlp->nlp_DID, cmdiocb->retry, delay); if ((cmd == ELS_CMD_PLOGI) || (cmd == ELS_CMD_ADISC)) { /* If discovery / RSCN timer is running, reset it */ if (timer_pending(&phba->fc_disctmo) || (phba->fc_flag & FC_RSCN_MODE)) { lpfc_set_disctmo(phba); } } phba->fc_stat.elsXmitRetry++; if (delay) { phba->fc_stat.elsDelayRetry++; ndlp->nlp_retry = cmdiocb->retry; mod_timer(&ndlp->nlp_delayfunc, jiffies + HZ); ndlp->nlp_flag |= NLP_DELAY_TMO; ndlp->nlp_state = NLP_STE_NPR_NODE; lpfc_nlp_list(phba, ndlp, NLP_NPR_LIST); ndlp->nlp_last_elscmd = cmd; return (1); } switch (cmd) { case ELS_CMD_FLOGI: lpfc_issue_els_flogi(phba, ndlp, cmdiocb->retry); return (1); case ELS_CMD_PLOGI: ndlp->nlp_state = NLP_STE_PLOGI_ISSUE; lpfc_nlp_list(phba, ndlp, NLP_PLOGI_LIST); lpfc_issue_els_plogi(phba, ndlp, cmdiocb->retry); return (1); case ELS_CMD_ADISC: ndlp->nlp_state = NLP_STE_ADISC_ISSUE; lpfc_nlp_list(phba, ndlp, NLP_ADISC_LIST); lpfc_issue_els_adisc(phba, ndlp, cmdiocb->retry); return (1); case ELS_CMD_PRLI: ndlp->nlp_state = NLP_STE_PRLI_ISSUE; lpfc_nlp_list(phba, ndlp, NLP_PRLI_LIST); lpfc_issue_els_prli(phba, ndlp, cmdiocb->retry); return (1); case ELS_CMD_LOGO: ndlp->nlp_state = NLP_STE_NPR_NODE; lpfc_nlp_list(phba, ndlp, NLP_NPR_LIST); lpfc_issue_els_logo(phba, ndlp, cmdiocb->retry); return (1); } } /* No retry ELS command to remote NPORT */ lpfc_printf_log(phba, KERN_INFO, LOG_ELS, "%d:0108 No retry ELS command x%x to remote NPORT x%x " "Data: x%x x%x\n", phba->brd_no, cmd, ndlp->nlp_DID, cmdiocb->retry, ndlp->nlp_flag); return (0); } int lpfc_els_free_iocb(struct lpfc_hba * phba, struct lpfc_iocbq * elsiocb) { struct lpfc_dmabuf *buf_ptr, *buf_ptr1; /* 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); } spin_lock_irq(phba->host->host_lock); list_add_tail(&elsiocb->list, &phba->lpfc_iocb_list); spin_unlock_irq(phba->host->host_lock); 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; ndlp = (struct lpfc_nodelist *) cmdiocb->context1; /* ACC to LOGO completes to NPort */ lpfc_printf_log(phba, KERN_INFO, LOG_ELS, "%d:0109 ACC to LOGO completes to NPort x%x " "Data: x%x x%x x%x\n", phba->brd_no, ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_state, ndlp->nlp_rpi); spin_lock_irq(phba->host->host_lock); ndlp->nlp_flag &= ~NLP_LOGO_ACC; spin_unlock_irq(phba->host->host_lock); switch (ndlp->nlp_state) { case NLP_STE_UNUSED_NODE: /* node is just allocated */ lpfc_nlp_list(phba, ndlp, NLP_NO_LIST); break; case NLP_STE_NPR_NODE: /* NPort Recovery mode */ lpfc_unreg_rpi(phba, ndlp); break; default: break; } lpfc_els_free_iocb(phba, cmdiocb); return; } static void lpfc_cmpl_els_acc(struct lpfc_hba * phba, struct lpfc_iocbq * cmdiocb, struct lpfc_iocbq * rspiocb) { struct lpfc_nodelist *ndlp; LPFC_MBOXQ_t *mbox = NULL; ndlp = (struct lpfc_nodelist *) cmdiocb->context1; if (cmdiocb->context_un.mbox) mbox = cmdiocb->context_un.mbox; /* Check to see if link went down during discovery */ if ((lpfc_els_chk_latt(phba)) || !ndlp) { if (mbox) { mempool_free( mbox, phba->mbox_mem_pool); } goto out; } /* ELS response tag completes */ lpfc_printf_log(phba, KERN_INFO, LOG_ELS, "%d:0110 ELS response tag x%x completes " "Data: x%x x%x x%x x%x x%x x%x\n", phba->brd_no, cmdiocb->iocb.ulpIoTag, rspiocb->iocb.ulpStatus, rspiocb->iocb.un.ulpWord[4], 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)) { /* set_slim mailbox command needs to execute first, * queue this command to be processed later. */ lpfc_unreg_rpi(phba, ndlp); mbox->mbox_cmpl = lpfc_mbx_cmpl_reg_login; mbox->context2 = ndlp; ndlp->nlp_state = NLP_STE_REG_LOGIN_ISSUE; lpfc_nlp_list(phba, ndlp, NLP_REGLOGIN_LIST); if (lpfc_sli_issue_mbox(phba, mbox, (MBX_NOWAIT | MBX_STOP_IOCB)) != MBX_NOT_FINISHED) { goto out; } /* NOTE: we should have messages for unsuccessful reglogin */ mempool_free( mbox, phba->mbox_mem_pool); } else { mempool_free( mbox, phba->mbox_mem_pool); if (ndlp->nlp_flag & NLP_ACC_REGLOGIN) { lpfc_nlp_list(phba, ndlp, NLP_NO_LIST); } } } out: if (ndlp) { spin_lock_irq(phba->host->host_lock); ndlp->nlp_flag &= ~NLP_ACC_REGLOGIN; spin_unlock_irq(phba->host->host_lock); } lpfc_els_free_iocb(phba, cmdiocb); return; } int lpfc_els_rsp_acc(struct lpfc_hba * phba, uint32_t flag, struct lpfc_iocbq * oldiocb, struct lpfc_nodelist * ndlp, LPFC_MBOXQ_t * mbox, uint8_t newnode) { 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 */ oldcmd = &oldiocb->iocb; switch (flag) { case ELS_CMD_ACC: cmdsize = sizeof (uint32_t); if ((elsiocb = lpfc_prep_els_iocb(phba, 0, cmdsize, oldiocb->retry, ndlp, ELS_CMD_ACC)) == 0) { 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); break; case ELS_CMD_PLOGI: cmdsize = (sizeof (struct serv_parm) + sizeof (uint32_t)); if ((elsiocb = lpfc_prep_els_iocb(phba, 0, cmdsize, oldiocb->retry, ndlp, ELS_CMD_ACC)) == 0) { 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, &phba->fc_sparam, sizeof (struct serv_parm)); break; default: return (1); } if (newnode) elsiocb->context1 = NULL; /* Xmit ELS ACC response tag */ lpfc_printf_log(phba, KERN_INFO, LOG_ELS, "%d:0128 Xmit ELS ACC response tag x%x " "Data: x%x x%x x%x x%x x%x\n", phba->brd_no, elsiocb->iocb.ulpIoTag, elsiocb->iocb.ulpContext, ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_state, ndlp->nlp_rpi); if (ndlp->nlp_flag & NLP_LOGO_ACC) { elsiocb->iocb_cmpl = lpfc_cmpl_els_logo_acc; } else { elsiocb->iocb_cmpl = lpfc_cmpl_els_acc; } phba->fc_stat.elsXmitACC++; spin_lock_irq(phba->host->host_lock); rc = lpfc_sli_issue_iocb(phba, pring, elsiocb, 0); spin_unlock_irq(phba->host->host_lock); if (rc == IOCB_ERROR) { lpfc_els_free_iocb(phba, elsiocb); return (1); } return (0); } int lpfc_els_rsp_reject(struct lpfc_hba * phba, uint32_t rejectError, struct lpfc_iocbq * oldiocb, struct lpfc_nodelist * ndlp) { 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); if ((elsiocb = lpfc_prep_els_iocb(phba, 0, cmdsize, oldiocb->retry, ndlp, ELS_CMD_LS_RJT)) == 0) { 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; /* Xmit ELS RJT response tag */ lpfc_printf_log(phba, KERN_INFO, LOG_ELS, "%d:0129 Xmit ELS RJT x%x response tag x%x " "Data: x%x x%x x%x x%x x%x\n", phba->brd_no, rejectError, elsiocb->iocb.ulpIoTag, elsiocb->iocb.ulpContext, ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_state, ndlp->nlp_rpi); phba->fc_stat.elsXmitLSRJT++; elsiocb->iocb_cmpl = lpfc_cmpl_els_acc; spin_lock_irq(phba->host->host_lock); rc = lpfc_sli_issue_iocb(phba, pring, elsiocb, 0); spin_unlock_irq(phba->host->host_lock); if (rc == IOCB_ERROR) { lpfc_els_free_iocb(phba, elsiocb); return (1); } return (0); } int lpfc_els_rsp_adisc_acc(struct lpfc_hba * phba, struct lpfc_iocbq * oldiocb, struct lpfc_nodelist * ndlp) { ADISC *ap; 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 (ADISC); if ((elsiocb = lpfc_prep_els_iocb(phba, 0, cmdsize, oldiocb->retry, ndlp, ELS_CMD_ACC)) == 0) { return (1); } /* Xmit ADISC ACC response tag */ lpfc_printf_log(phba, KERN_INFO, LOG_ELS, "%d:0130 Xmit ADISC ACC response tag x%x " "Data: x%x x%x x%x x%x x%x\n", phba->brd_no, elsiocb->iocb.ulpIoTag, elsiocb->iocb.ulpContext, ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_state, ndlp->nlp_rpi); 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_ACC; pcmd += sizeof (uint32_t); ap = (ADISC *) (pcmd); ap->hardAL_PA = phba->fc_pref_ALPA; memcpy(&ap->portName, &phba->fc_portname, sizeof (struct lpfc_name)); memcpy(&ap->nodeName, &phba->fc_nodename, sizeof (struct lpfc_name)); ap->DID = be32_to_cpu(phba->fc_myDID); phba->fc_stat.elsXmitACC++; elsiocb->iocb_cmpl = lpfc_cmpl_els_acc; spin_lock_irq(phba->host->host_lock); rc = lpfc_sli_issue_iocb(phba, pring, elsiocb, 0); spin_unlock_irq(phba->host->host_lock); if (rc == IOCB_ERROR) { lpfc_els_free_iocb(phba, elsiocb); return (1); } return (0); } int lpfc_els_rsp_prli_acc(struct lpfc_hba * phba, struct lpfc_iocbq * oldiocb, struct lpfc_nodelist * ndlp) { 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); if ((elsiocb = lpfc_prep_els_iocb(phba, 0, cmdsize, oldiocb->retry, ndlp, (ELS_CMD_ACC | (ELS_CMD_PRLI & ~ELS_RSP_MASK)))) == 0) { return (1); } /* Xmit PRLI ACC response tag */ lpfc_printf_log(phba, KERN_INFO, LOG_ELS, "%d:0131 Xmit PRLI ACC response tag x%x " "Data: x%x x%x x%x x%x x%x\n", phba->brd_no, elsiocb->iocb.ulpIoTag, elsiocb->iocb.ulpContext, ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_state, ndlp->nlp_rpi); 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_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; phba->fc_stat.elsXmitACC++; elsiocb->iocb_cmpl = lpfc_cmpl_els_acc; spin_lock_irq(phba->host->host_lock); rc = lpfc_sli_issue_iocb(phba, pring, elsiocb, 0); spin_unlock_irq(phba->host->host_lock); if (rc == IOCB_ERROR) { lpfc_els_free_iocb(phba, elsiocb); return (1); } return (0); } static int lpfc_els_rsp_rnid_acc(struct lpfc_hba * phba, uint8_t format, struct lpfc_iocbq * oldiocb, struct lpfc_nodelist * ndlp) { RNID *rn; 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]; cmdsize = sizeof (uint32_t) + sizeof (uint32_t) + (2 * sizeof (struct lpfc_name)); if (format) cmdsize += sizeof (RNID_TOP_DISC); if ((elsiocb = lpfc_prep_els_iocb(phba, 0, cmdsize, oldiocb->retry, ndlp, ELS_CMD_ACC)) == 0) { return (1); } /* Xmit RNID ACC response tag */ lpfc_printf_log(phba, KERN_INFO, LOG_ELS, "%d:0132 Xmit RNID ACC response tag x%x " "Data: x%x\n", phba->brd_no, elsiocb->iocb.ulpIoTag, elsiocb->iocb.ulpContext); 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_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, &phba->fc_portname, sizeof (struct lpfc_name)); memcpy(&rn->nodeName, &phba->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, &phba->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; } phba->fc_stat.elsXmitACC++; elsiocb->iocb_cmpl = lpfc_cmpl_els_acc; elsiocb->context1 = NULL; /* Don't need ndlp for cmpl, * it could be freed */ spin_lock_irq(phba->host->host_lock); rc = lpfc_sli_issue_iocb(phba, pring, elsiocb, 0); spin_unlock_irq(phba->host->host_lock); if (rc == IOCB_ERROR) { lpfc_els_free_iocb(phba, elsiocb); return (1); } return (0); } int lpfc_els_disc_adisc(struct lpfc_hba * phba) { int sentadisc; struct lpfc_nodelist *ndlp, *next_ndlp; sentadisc = 0; /* go thru NPR list and issue any remaining ELS ADISCs */ list_for_each_entry_safe(ndlp, next_ndlp, &phba->fc_npr_list, nlp_listp) { if (ndlp->nlp_flag & NLP_NPR_2B_DISC) { if (ndlp->nlp_flag & NLP_NPR_ADISC) { ndlp->nlp_flag &= ~NLP_NPR_ADISC; ndlp->nlp_state = NLP_STE_ADISC_ISSUE; lpfc_nlp_list(phba, ndlp, NLP_ADISC_LIST); lpfc_issue_els_adisc(phba, ndlp, 0); sentadisc++; phba->num_disc_nodes++; if (phba->num_disc_nodes >= phba->cfg_discovery_threads) { spin_lock_irq(phba->host->host_lock); phba->fc_flag |= FC_NLP_MORE; spin_unlock_irq(phba->host->host_lock); break; } } } } if (sentadisc == 0) { spin_lock_irq(phba->host->host_lock); phba->fc_flag &= ~FC_NLP_MORE; spin_unlock_irq(phba->host->host_lock); } return(sentadisc); } int lpfc_els_disc_plogi(struct lpfc_hba * phba) { int sentplogi; struct lpfc_nodelist *ndlp, *next_ndlp; sentplogi = 0; /* go thru NPR list and issue any remaining ELS PLOGIs */ list_for_each_entry_safe(ndlp, next_ndlp, &phba->fc_npr_list, nlp_listp) { if ((ndlp->nlp_flag & NLP_NPR_2B_DISC) && (!(ndlp->nlp_flag & NLP_DELAY_TMO))) { if (!(ndlp->nlp_flag & NLP_NPR_ADISC)) { ndlp->nlp_state = NLP_STE_PLOGI_ISSUE; lpfc_nlp_list(phba, ndlp, NLP_PLOGI_LIST); lpfc_issue_els_plogi(phba, ndlp, 0); sentplogi++; phba->num_disc_nodes++; if (phba->num_disc_nodes >= phba->cfg_discovery_threads) { spin_lock_irq(phba->host->host_lock); phba->fc_flag |= FC_NLP_MORE; spin_unlock_irq(phba->host->host_lock); break; } } } } if (sentplogi == 0) { spin_lock_irq(phba->host->host_lock); phba->fc_flag &= ~FC_NLP_MORE; spin_unlock_irq(phba->host->host_lock); } return(sentplogi); } int lpfc_els_flush_rscn(struct lpfc_hba * phba) { struct lpfc_dmabuf *mp; int i; for (i = 0; i < phba->fc_rscn_id_cnt; i++) { mp = phba->fc_rscn_id_list[i]; lpfc_mbuf_free(phba, mp->virt, mp->phys); kfree(mp); phba->fc_rscn_id_list[i] = NULL; } phba->fc_rscn_id_cnt = 0; spin_lock_irq(phba->host->host_lock); phba->fc_flag &= ~(FC_RSCN_MODE | FC_RSCN_DISCOVERY); spin_unlock_irq(phba->host->host_lock); lpfc_can_disctmo(phba); return (0); } int lpfc_rscn_payload_check(struct lpfc_hba * phba, uint32_t did) { D_ID ns_did; D_ID rscn_did; struct lpfc_dmabuf *mp; uint32_t *lp; uint32_t payload_len, cmd, i, match; ns_did.un.word = did; match = 0; /* 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 (phba->fc_flag & FC_RSCN_DISCOVERY) { return (did); } for (i = 0; i < phba->fc_rscn_id_cnt; i++) { mp = phba->fc_rscn_id_list[i]; lp = (uint32_t *) mp->virt; cmd = *lp++; payload_len = be32_to_cpu(cmd) & 0xffff; /* payload length */ payload_len -= sizeof (uint32_t); /* take off word 0 */ while (payload_len) { rscn_did.un.word = *lp++; rscn_did.un.word = be32_to_cpu(rscn_did.un.word); 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) { match = 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)) { match = did; } break; case 2: /* Whole N_Port Domain effected */ if (ns_did.un.b.domain == rscn_did.un.b.domain) { match = did; } break; case 3: /* Whole Fabric effected */ match = did; break; default: /* Unknown Identifier in RSCN list */ lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY, "%d:0217 Unknown Identifier in " "RSCN payload Data: x%x\n", phba->brd_no, rscn_did.un.word); break; } if (match) { break; } } } return (match); } static int lpfc_rscn_recovery_check(struct lpfc_hba * phba) { struct lpfc_nodelist *ndlp = NULL, *next_ndlp; struct list_head *listp; struct list_head *node_list[7]; int i; /* Look at all nodes effected by pending RSCNs and move * them to NPR list. */ node_list[0] = &phba->fc_npr_list; /* MUST do this list first */ node_list[1] = &phba->fc_nlpmap_list; node_list[2] = &phba->fc_nlpunmap_list; node_list[3] = &phba->fc_prli_list; node_list[4] = &phba->fc_reglogin_list; node_list[5] = &phba->fc_adisc_list; node_list[6] = &phba->fc_plogi_list; for (i = 0; i < 7; i++) { listp = node_list[i]; if (list_empty(listp)) continue; list_for_each_entry_safe(ndlp, next_ndlp, listp, nlp_listp) { if (!(lpfc_rscn_payload_check(phba, ndlp->nlp_DID))) continue; lpfc_disc_state_machine(phba, ndlp, NULL, NLP_EVT_DEVICE_RECOVERY); if (ndlp->nlp_flag & NLP_DELAY_TMO) { ndlp->nlp_flag &= ~NLP_DELAY_TMO; del_timer_sync(&ndlp->nlp_delayfunc); if (!list_empty(&ndlp-> els_retry_evt.evt_listp)) list_del_init(&ndlp-> els_retry_evt.evt_listp); } } } return (0); } static int lpfc_els_rcv_rscn(struct lpfc_hba * phba, struct lpfc_iocbq * cmdiocb, struct lpfc_nodelist * ndlp, uint8_t newnode) { struct lpfc_dmabuf *pcmd; uint32_t *lp; IOCB_t *icmd; uint32_t payload_len, cmd; icmd = &cmdiocb->iocb; pcmd = (struct lpfc_dmabuf *) cmdiocb->context2; lp = (uint32_t *) pcmd->virt; cmd = *lp++; payload_len = be32_to_cpu(cmd) & 0xffff; /* payload length */ payload_len -= sizeof (uint32_t); /* take off word 0 */ cmd &= ELS_CMD_MASK; /* RSCN received */ lpfc_printf_log(phba, KERN_INFO, LOG_DISCOVERY, "%d:0214 RSCN received Data: x%x x%x x%x x%x\n", phba->brd_no, phba->fc_flag, payload_len, *lp, phba->fc_rscn_id_cnt); /* If we are about to begin discovery, just ACC the RSCN. * Discovery processing will satisfy it. */ if (phba->hba_state < LPFC_NS_QRY) { lpfc_els_rsp_acc(phba, ELS_CMD_ACC, cmdiocb, ndlp, NULL, newnode); return (0); } /* If we are already processing an RSCN, save the received * RSCN payload buffer, cmdiocb->context2 to process later. */ if (phba->fc_flag & (FC_RSCN_MODE | FC_NDISC_ACTIVE)) { if ((phba->fc_rscn_id_cnt < FC_MAX_HOLD_RSCN) && !(phba->fc_flag & FC_RSCN_DISCOVERY)) { spin_lock_irq(phba->host->host_lock); phba->fc_flag |= FC_RSCN_MODE; spin_unlock_irq(phba->host->host_lock); phba->fc_rscn_id_list[phba->fc_rscn_id_cnt++] = pcmd; /* If we zero, cmdiocb->context2, the calling * routine will not try to free it. */ cmdiocb->context2 = NULL; /* Deferred RSCN */ lpfc_printf_log(phba, KERN_INFO, LOG_DISCOVERY, "%d:0235 Deferred RSCN " "Data: x%x x%x x%x\n", phba->brd_no, phba->fc_rscn_id_cnt, phba->fc_flag, phba->hba_state); } else { spin_lock_irq(phba->host->host_lock); phba->fc_flag |= FC_RSCN_DISCOVERY; spin_unlock_irq(phba->host->host_lock); /* ReDiscovery RSCN */ lpfc_printf_log(phba, KERN_INFO, LOG_DISCOVERY, "%d:0234 ReDiscovery RSCN " "Data: x%x x%x x%x\n", phba->brd_no, phba->fc_rscn_id_cnt, phba->fc_flag, phba->hba_state); } /* Send back ACC */ lpfc_els_rsp_acc(phba, ELS_CMD_ACC, cmdiocb, ndlp, NULL, newnode); /* send RECOVERY event for ALL nodes that match RSCN payload */ lpfc_rscn_recovery_check(phba); return (0); } phba->fc_flag |= FC_RSCN_MODE; phba->fc_rscn_id_list[phba->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(phba); /* Send back ACC */ lpfc_els_rsp_acc(phba, ELS_CMD_ACC, cmdiocb, ndlp, NULL, newnode); /* send RECOVERY event for ALL nodes that match RSCN payload */ lpfc_rscn_recovery_check(phba); return (lpfc_els_handle_rscn(phba)); } int lpfc_els_handle_rscn(struct lpfc_hba * phba) { struct lpfc_nodelist *ndlp; /* Start timer for RSCN processing */ lpfc_set_disctmo(phba); /* RSCN processed */ lpfc_printf_log(phba, KERN_INFO, LOG_DISCOVERY, "%d:0215 RSCN processed Data: x%x x%x x%x x%x\n", phba->brd_no, phba->fc_flag, 0, phba->fc_rscn_id_cnt, phba->hba_state); /* To process RSCN, first compare RSCN data with NameServer */ phba->fc_ns_retry = 0; if ((ndlp = lpfc_findnode_did(phba, NLP_SEARCH_UNMAPPED, NameServer_DID))) { /* Good ndlp, issue CT Request to NameServer */ if (lpfc_ns_cmd(phba, ndlp, SLI_CTNS_GID_FT) == 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 */ if ((ndlp = lpfc_findnode_did(phba, NLP_SEARCH_ALL, NameServer_DID))) { /* Wait for NameServer login cmpl before we can continue */ return (1); } if ((ndlp = mempool_alloc(phba->nlp_mem_pool, GFP_KERNEL)) == 0) { lpfc_els_flush_rscn(phba); return (0); } else { lpfc_nlp_init(phba, ndlp, NameServer_DID); ndlp->nlp_type |= NLP_FABRIC; ndlp->nlp_state = NLP_STE_PLOGI_ISSUE; lpfc_issue_els_plogi(phba, ndlp, 0); /* Wait for NameServer login cmpl before we can continue */ return (1); } } lpfc_els_flush_rscn(phba); return (0); } static int lpfc_els_rcv_flogi(struct lpfc_hba * phba, struct lpfc_iocbq * cmdiocb, struct lpfc_nodelist * ndlp, uint8_t newnode) { 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(phba); 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_log(phba, KERN_ERR, LOG_ELS, "%d:0113 An FLOGI ELS command x%x was received " "from DID x%x in Loop Mode\n", phba->brd_no, cmd, did); return (1); } did = Fabric_DID; if ((lpfc_check_sparm(phba, ndlp, sp, CLASS3))) { /* For a FLOGI we accept, then if our portname is greater * then the remote portname we initiate Nport login. */ rc = memcmp(&phba->fc_portname, &sp->portName, sizeof (struct lpfc_name)); if (!rc) { if ((mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL)) == 0) { 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; rc = lpfc_sli_issue_mbox (phba, mbox, (MBX_NOWAIT | MBX_STOP_IOCB)); if (rc == MBX_NOT_FINISHED) { mempool_free( mbox, phba->mbox_mem_pool); } return (1); } else if (rc > 0) { /* greater than */ spin_lock_irq(phba->host->host_lock); phba->fc_flag |= FC_PT2PT_PLOGI; spin_unlock_irq(phba->host->host_lock); } phba->fc_flag |= FC_PT2PT; phba->fc_flag &= ~(FC_FABRIC | FC_PUBLIC_LOOP); } 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(phba, stat.un.lsRjtError, cmdiocb, ndlp); return (1); } /* Send back ACC */ lpfc_els_rsp_acc(phba, ELS_CMD_PLOGI, cmdiocb, ndlp, NULL, newnode); return (0); } static int lpfc_els_rcv_rnid(struct lpfc_hba * phba, 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(phba, 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(phba, stat.un.lsRjtError, cmdiocb, ndlp); } return (0); } static int lpfc_els_rcv_rrq(struct lpfc_hba * phba, struct lpfc_iocbq * cmdiocb, struct lpfc_nodelist * ndlp) { struct lpfc_dmabuf *pcmd; uint32_t *lp; IOCB_t *icmd; struct lpfc_sli_ring *pring; struct lpfc_sli *psli; RRQ *rrq; uint32_t cmd, did; psli = &phba->sli; pring = &psli->ring[LPFC_FCP_RING]; icmd = &cmdiocb->iocb; did = icmd->un.elsreq64.remoteID; pcmd = (struct lpfc_dmabuf *) cmdiocb->context2; lp = (uint32_t *) pcmd->virt; cmd = *lp++; rrq = (RRQ *) lp; /* RRQ received */ /* Get oxid / rxid from payload and abort it */ spin_lock_irq(phba->host->host_lock); if ((rrq->SID == be32_to_cpu(phba->fc_myDID))) { lpfc_sli_abort_iocb(phba, pring, 0, 0, rrq->Oxid, LPFC_CTX_CTX); } else { lpfc_sli_abort_iocb(phba, pring, 0, 0, rrq->Rxid, LPFC_CTX_CTX); } spin_unlock_irq(phba->host->host_lock); /* ACCEPT the rrq request */ lpfc_els_rsp_acc(phba, ELS_CMD_ACC, cmdiocb, ndlp, NULL, 0); return 0; } static int lpfc_els_rcv_farp(struct lpfc_hba * phba, 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_log(phba, KERN_INFO, LOG_IP, "%d:0601 FARP-REQ received from DID x%x\n", phba->brd_no, 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, &phba->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, &phba->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_state = NLP_STE_PLOGI_ISSUE; lpfc_nlp_list(phba, ndlp, NLP_PLOGI_LIST); lpfc_issue_els_plogi(phba, ndlp, 0); } /* Send a FARP response to that node */ if (fp->Rflags & FARP_REQUEST_FARPR) { lpfc_issue_els_farpr(phba, did, 0); } } } return (0); } static int lpfc_els_rcv_farpr(struct lpfc_hba * phba, 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_log(phba, KERN_INFO, LOG_IP, "%d:0600 FARP-RSP received from DID x%x\n", phba->brd_no, did); /* ACCEPT the Farp resp request */ lpfc_els_rsp_acc(phba, ELS_CMD_ACC, cmdiocb, ndlp, NULL, 0); return 0; } static int lpfc_els_rcv_fan(struct lpfc_hba * phba, struct lpfc_iocbq * cmdiocb, struct lpfc_nodelist * ndlp) { struct lpfc_dmabuf *pcmd; uint32_t *lp; IOCB_t *icmd; FAN *fp; 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++; fp = (FAN *) lp; /* FAN received */ /* ACCEPT the FAN request */ lpfc_els_rsp_acc(phba, ELS_CMD_ACC, cmdiocb, ndlp, NULL, 0); if (phba->hba_state == LPFC_LOCAL_CFG_LINK) { /* The discovery state machine needs to take a different * action if this node has switched fabrics */ if ((memcmp(&fp->FportName, &phba->fc_fabparam.portName, sizeof (struct lpfc_name)) != 0) || (memcmp(&fp->FnodeName, &phba->fc_fabparam.nodeName, sizeof (struct lpfc_name)) != 0)) { /* This node has switched fabrics. An FLOGI is required * after the timeout */ return (0); } /* Start discovery */ lpfc_disc_start(phba); } return (0); } void lpfc_els_timeout(unsigned long ptr) { struct lpfc_hba *phba; unsigned long iflag; phba = (struct lpfc_hba *)ptr; if (phba == 0) return; spin_lock_irqsave(phba->host->host_lock, iflag); if (!(phba->work_hba_events & WORKER_ELS_TMO)) { phba->work_hba_events |= WORKER_ELS_TMO; if (phba->work_wait) wake_up(phba->work_wait); } spin_unlock_irqrestore(phba->host->host_lock, iflag); return; } void lpfc_els_timeout_handler(struct lpfc_hba *phba) { struct lpfc_sli_ring *pring; struct lpfc_iocbq *tmp_iocb, *piocb; IOCB_t *cmd = NULL; struct lpfc_dmabuf *pcmd; struct list_head *dlp; uint32_t *elscmd; uint32_t els_command; uint32_t timeout; uint32_t remote_ID; if (phba == 0) return; spin_lock_irq(phba->host->host_lock); /* If the timer is already canceled do nothing */ if (!(phba->work_hba_events & WORKER_ELS_TMO)) { spin_unlock_irq(phba->host->host_lock); return; } timeout = (uint32_t)(phba->fc_ratov << 1); pring = &phba->sli.ring[LPFC_ELS_RING]; dlp = &pring->txcmplq; list_for_each_entry_safe(piocb, tmp_iocb, &pring->txcmplq, list) { cmd = &piocb->iocb; if (piocb->iocb_flag & LPFC_IO_LIBDFC) { continue; } pcmd = (struct lpfc_dmabuf *) piocb->context2; elscmd = (uint32_t *) (pcmd->virt); els_command = *elscmd; if ((els_command == ELS_CMD_FARP) || (els_command == ELS_CMD_FARPR)) { continue; } if (piocb->drvrTimeout > 0) { if (piocb->drvrTimeout >= timeout) { piocb->drvrTimeout -= timeout; } else { piocb->drvrTimeout = 0; } continue; } list_del(&piocb->list); pring->txcmplq_cnt--; if (cmd->ulpCommand == CMD_GEN_REQUEST64_CR) { struct lpfc_nodelist *ndlp; ndlp = lpfc_findnode_rpi(phba, cmd->ulpContext); remote_ID = ndlp->nlp_DID; if (cmd->un.elsreq64.bdl.ulpIoTag32) { lpfc_sli_issue_abort_iotag32(phba, pring, piocb); } } else { remote_ID = cmd->un.elsreq64.remoteID; } lpfc_printf_log(phba, KERN_ERR, LOG_ELS, "%d:0127 ELS timeout Data: x%x x%x x%x x%x\n", phba->brd_no, els_command, remote_ID, cmd->ulpCommand, cmd->ulpIoTag); /* * The iocb has timed out; abort it. */ if (piocb->iocb_cmpl) { cmd->ulpStatus = IOSTAT_LOCAL_REJECT; cmd->un.ulpWord[4] = IOERR_SLI_ABORTED; spin_unlock_irq(phba->host->host_lock); (piocb->iocb_cmpl) (phba, piocb, piocb); spin_lock_irq(phba->host->host_lock); } else { list_add_tail(&piocb->list, &phba->lpfc_iocb_list); } } if (phba->sli.ring[LPFC_ELS_RING].txcmplq_cnt) { phba->els_tmofunc.expires = jiffies + HZ * timeout; add_timer(&phba->els_tmofunc); } spin_unlock_irq(phba->host->host_lock); } void lpfc_els_flush_cmd(struct lpfc_hba * phba) { struct lpfc_sli_ring *pring; struct lpfc_iocbq *tmp_iocb, *piocb; IOCB_t *cmd = NULL; struct lpfc_dmabuf *pcmd; uint32_t *elscmd; uint32_t els_command; uint32_t remote_ID; pring = &phba->sli.ring[LPFC_ELS_RING]; spin_lock_irq(phba->host->host_lock); 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; } pcmd = (struct lpfc_dmabuf *) piocb->context2; elscmd = (uint32_t *) (pcmd->virt); els_command = *elscmd; if (cmd->ulpCommand == CMD_GEN_REQUEST64_CR) { struct lpfc_nodelist *ndlp; ndlp = lpfc_findnode_rpi(phba, cmd->ulpContext); remote_ID = ndlp->nlp_DID; if (phba->hba_state == LPFC_HBA_READY) { continue; } } else { remote_ID = cmd->un.elsreq64.remoteID; } list_del(&piocb->list); pring->txcmplq_cnt--; cmd->ulpStatus = IOSTAT_LOCAL_REJECT; cmd->un.ulpWord[4] = IOERR_SLI_ABORTED; if (piocb->iocb_cmpl) { spin_unlock_irq(phba->host->host_lock); (piocb->iocb_cmpl) (phba, piocb, piocb); spin_lock_irq(phba->host->host_lock); } else list_add_tail(&piocb->list, &phba->lpfc_iocb_list); } list_for_each_entry_safe(piocb, tmp_iocb, &pring->txcmplq, list) { cmd = &piocb->iocb; if (piocb->iocb_flag & LPFC_IO_LIBDFC) { continue; } pcmd = (struct lpfc_dmabuf *) piocb->context2; elscmd = (uint32_t *) (pcmd->virt); els_command = *elscmd; if (cmd->ulpCommand == CMD_GEN_REQUEST64_CR) { struct lpfc_nodelist *ndlp; ndlp = lpfc_findnode_rpi(phba, cmd->ulpContext); remote_ID = ndlp->nlp_DID; if (phba->hba_state == LPFC_HBA_READY) { continue; } } else { remote_ID = cmd->un.elsreq64.remoteID; } list_del(&piocb->list); pring->txcmplq_cnt--; cmd->ulpStatus = IOSTAT_LOCAL_REJECT; cmd->un.ulpWord[4] = IOERR_SLI_ABORTED; if (piocb->iocb_cmpl) { spin_unlock_irq(phba->host->host_lock); (piocb->iocb_cmpl) (phba, piocb, piocb); spin_lock_irq(phba->host->host_lock); } else list_add_tail(&piocb->list, &phba->lpfc_iocb_list); } spin_unlock_irq(phba->host->host_lock); return; } void lpfc_els_unsol_event(struct lpfc_hba * phba, struct lpfc_sli_ring * pring, struct lpfc_iocbq * elsiocb) { struct lpfc_sli *psli; struct lpfc_nodelist *ndlp; struct lpfc_dmabuf *mp; uint32_t *lp; IOCB_t *icmd; struct ls_rjt stat; uint32_t cmd; uint32_t did; uint32_t newnode; uint32_t drop_cmd = 0; /* by default do NOT drop received cmd */ uint32_t rjt_err = 0; psli = &phba->sli; icmd = &elsiocb->iocb; if ((icmd->ulpStatus == IOSTAT_LOCAL_REJECT) && ((icmd->un.ulpWord[4] & 0xff) == IOERR_RCV_BUFFER_WAITING)) { /* Not enough posted buffers; Try posting more buffers */ phba->fc_stat.NoRcvBuf++; lpfc_post_buffer(phba, pring, 0, 1); return; } /* 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 */ mp = lpfc_sli_ringpostbuf_get(phba, pring, getPaddr(icmd->un. cont64[0]. addrHigh, icmd->un. cont64[0].addrLow)); if (mp == 0) { drop_cmd = 1; goto dropit; } newnode = 0; lp = (uint32_t *) mp->virt; cmd = *lp++; lpfc_post_buffer(phba, &psli->ring[LPFC_ELS_RING], 1, 1); if (icmd->ulpStatus) { lpfc_mbuf_free(phba, mp->virt, mp->phys); kfree(mp); drop_cmd = 1; goto dropit; } /* Check to see if link went down during discovery */ if (lpfc_els_chk_latt(phba)) { lpfc_mbuf_free(phba, mp->virt, mp->phys); kfree(mp); drop_cmd = 1; goto dropit; } did = icmd->un.rcvels.remoteID; if ((ndlp = lpfc_findnode_did(phba, NLP_SEARCH_ALL, did)) == 0) { /* Cannot find existing Fabric ndlp, so allocate a new one */ if ((ndlp = mempool_alloc(phba->nlp_mem_pool, GFP_KERNEL)) == 0) { lpfc_mbuf_free(phba, mp->virt, mp->phys); kfree(mp); drop_cmd = 1; goto dropit; } lpfc_nlp_init(phba, ndlp, did); newnode = 1; if ((did & Fabric_DID_MASK) == Fabric_DID_MASK) { ndlp->nlp_type |= NLP_FABRIC; } } phba->fc_stat.elsRcvFrame++; elsiocb->context1 = ndlp; elsiocb->context2 = mp; if ((cmd & ELS_CMD_MASK) == ELS_CMD_RSCN) { cmd &= ELS_CMD_MASK; } /* ELS command received from NPORT */ lpfc_printf_log(phba, KERN_INFO, LOG_ELS, "%d:0112 ELS command x%x received from NPORT x%x " "Data: x%x\n", phba->brd_no, cmd, did, phba->hba_state); switch (cmd) { case ELS_CMD_PLOGI: phba->fc_stat.elsRcvPLOGI++; if (phba->hba_state < LPFC_DISC_AUTH) { rjt_err = 1; break; } lpfc_disc_state_machine(phba, ndlp, elsiocb, NLP_EVT_RCV_PLOGI); break; case ELS_CMD_FLOGI: phba->fc_stat.elsRcvFLOGI++; lpfc_els_rcv_flogi(phba, elsiocb, ndlp, newnode); if (newnode) { mempool_free( ndlp, phba->nlp_mem_pool); } break; case ELS_CMD_LOGO: phba->fc_stat.elsRcvLOGO++; if (phba->hba_state < LPFC_DISC_AUTH) { rjt_err = 1; break; } lpfc_disc_state_machine(phba, ndlp, elsiocb, NLP_EVT_RCV_LOGO); break; case ELS_CMD_PRLO: phba->fc_stat.elsRcvPRLO++; if (phba->hba_state < LPFC_DISC_AUTH) { rjt_err = 1; break; } lpfc_disc_state_machine(phba, ndlp, elsiocb, NLP_EVT_RCV_PRLO); break; case ELS_CMD_RSCN: phba->fc_stat.elsRcvRSCN++; lpfc_els_rcv_rscn(phba, elsiocb, ndlp, newnode); if (newnode) { mempool_free( ndlp, phba->nlp_mem_pool); } break; case ELS_CMD_ADISC: phba->fc_stat.elsRcvADISC++; if (phba->hba_state < LPFC_DISC_AUTH) { rjt_err = 1; break; } lpfc_disc_state_machine(phba, ndlp, elsiocb, NLP_EVT_RCV_ADISC); break; case ELS_CMD_PDISC: phba->fc_stat.elsRcvPDISC++; if (phba->hba_state < LPFC_DISC_AUTH) { rjt_err = 1; break; } lpfc_disc_state_machine(phba, ndlp, elsiocb, NLP_EVT_RCV_PDISC); break; case ELS_CMD_FARPR: phba->fc_stat.elsRcvFARPR++; lpfc_els_rcv_farpr(phba, elsiocb, ndlp); break; case ELS_CMD_FARP: phba->fc_stat.elsRcvFARP++; lpfc_els_rcv_farp(phba, elsiocb, ndlp); break; case ELS_CMD_FAN: phba->fc_stat.elsRcvFAN++; lpfc_els_rcv_fan(phba, elsiocb, ndlp); break; case ELS_CMD_RRQ: phba->fc_stat.elsRcvRRQ++; lpfc_els_rcv_rrq(phba, elsiocb, ndlp); break; case ELS_CMD_PRLI: phba->fc_stat.elsRcvPRLI++; if (phba->hba_state < LPFC_DISC_AUTH) { rjt_err = 1; break; } lpfc_disc_state_machine(phba, ndlp, elsiocb, NLP_EVT_RCV_PRLI); break; case ELS_CMD_RNID: phba->fc_stat.elsRcvRNID++; lpfc_els_rcv_rnid(phba, elsiocb, ndlp); break; default: /* Unsupported ELS command, reject */ rjt_err = 1; /* Unknown ELS command received from NPORT */ lpfc_printf_log(phba, KERN_ERR, LOG_ELS, "%d:0115 Unknown ELS command x%x received from " "NPORT x%x\n", phba->brd_no, cmd, did); if (newnode) { mempool_free( ndlp, phba->nlp_mem_pool); } break; } /* check if need to LS_RJT received ELS cmd */ if (rjt_err) { stat.un.b.lsRjtRsvd0 = 0; stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC; stat.un.b.lsRjtRsnCodeExp = LSEXP_NOTHING_MORE; stat.un.b.vendorUnique = 0; lpfc_els_rsp_reject(phba, stat.un.lsRjtError, elsiocb, ndlp); } if (elsiocb->context2) { lpfc_mbuf_free(phba, mp->virt, mp->phys); kfree(mp); } dropit: /* check if need to drop received ELS cmd */ if (drop_cmd == 1) { lpfc_printf_log(phba, KERN_ERR, LOG_ELS, "%d:0111 Dropping received ELS cmd " "Data: x%x x%x\n", phba->brd_no, icmd->ulpStatus, icmd->un.ulpWord[4]); phba->fc_stat.elsRcvDrop++; } return; }