| Author | Tokens | Token Proportion | Commits | Commit Proportion |
|---|---|---|---|---|
| James Smart | 7123 | 51.74% | 88 | 86.27% |
| James Bottomley | 6111 | 44.39% | 2 | 1.96% |
| Jamie Wellnitz | 464 | 3.37% | 3 | 2.94% |
| Dick Kennedy | 56 | 0.41% | 4 | 3.92% |
| Guilherme G. Piccoli | 8 | 0.06% | 1 | 0.98% |
| Tejun Heo | 3 | 0.02% | 1 | 0.98% |
| Bart Van Assche | 2 | 0.01% | 2 | 1.96% |
| Lucas De Marchi | 1 | 0.01% | 1 | 0.98% |
| Total | 13768 | 102 |
/******************************************************************* * This file is part of the Emulex Linux Device Driver for * * Fibre Channel Host Bus Adapters. * * Copyright (C) 2017-2019 Broadcom. All Rights Reserved. The term * * “Broadcom” refers to Broadcom Inc. and/or its subsidiaries. * * Copyright (C) 2004-2016 Emulex. All rights reserved. * * EMULEX and SLI are trademarks of Emulex. * * www.broadcom.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 <linux/blkdev.h> #include <linux/pci.h> #include <linux/slab.h> #include <linux/interrupt.h> #include <scsi/scsi.h> #include <scsi/scsi_device.h> #include <scsi/scsi_host.h> #include <scsi/scsi_transport_fc.h> #include <scsi/fc/fc_fs.h> #include <linux/nvme-fc-driver.h> #include "lpfc_hw4.h" #include "lpfc_hw.h" #include "lpfc_sli.h" #include "lpfc_sli4.h" #include "lpfc_nl.h" #include "lpfc_disc.h" #include "lpfc.h" #include "lpfc_scsi.h" #include "lpfc_nvme.h" #include "lpfc_logmsg.h" #include "lpfc_crtn.h" #include "lpfc_vport.h" #include "lpfc_debugfs.h" /* Called to verify a rcv'ed ADISC was intended for us. */ static int lpfc_check_adisc(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, struct lpfc_name *nn, struct lpfc_name *pn) { /* First, we MUST have a RPI registered */ if (!(ndlp->nlp_flag & NLP_RPI_REGISTERED)) return 0; /* Compare the ADISC rsp WWNN / WWPN matches our internal node * table entry for that node. */ if (memcmp(nn, &ndlp->nlp_nodename, sizeof (struct lpfc_name))) return 0; if (memcmp(pn, &ndlp->nlp_portname, sizeof (struct lpfc_name))) return 0; /* we match, return success */ return 1; } int lpfc_check_sparm(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, struct serv_parm *sp, uint32_t class, int flogi) { volatile struct serv_parm *hsp = &vport->fc_sparam; uint16_t hsp_value, ssp_value = 0; /* * The receive data field size and buffer-to-buffer receive data field * size entries are 16 bits but are represented as two 8-bit fields in * the driver data structure to account for rsvd bits and other control * bits. Reconstruct and compare the fields as a 16-bit values before * correcting the byte values. */ if (sp->cls1.classValid) { if (!flogi) { hsp_value = ((hsp->cls1.rcvDataSizeMsb << 8) | hsp->cls1.rcvDataSizeLsb); ssp_value = ((sp->cls1.rcvDataSizeMsb << 8) | sp->cls1.rcvDataSizeLsb); if (!ssp_value) goto bad_service_param; if (ssp_value > hsp_value) { sp->cls1.rcvDataSizeLsb = hsp->cls1.rcvDataSizeLsb; sp->cls1.rcvDataSizeMsb = hsp->cls1.rcvDataSizeMsb; } } } else if (class == CLASS1) goto bad_service_param; if (sp->cls2.classValid) { if (!flogi) { hsp_value = ((hsp->cls2.rcvDataSizeMsb << 8) | hsp->cls2.rcvDataSizeLsb); ssp_value = ((sp->cls2.rcvDataSizeMsb << 8) | sp->cls2.rcvDataSizeLsb); if (!ssp_value) goto bad_service_param; if (ssp_value > hsp_value) { sp->cls2.rcvDataSizeLsb = hsp->cls2.rcvDataSizeLsb; sp->cls2.rcvDataSizeMsb = hsp->cls2.rcvDataSizeMsb; } } } else if (class == CLASS2) goto bad_service_param; if (sp->cls3.classValid) { if (!flogi) { hsp_value = ((hsp->cls3.rcvDataSizeMsb << 8) | hsp->cls3.rcvDataSizeLsb); ssp_value = ((sp->cls3.rcvDataSizeMsb << 8) | sp->cls3.rcvDataSizeLsb); if (!ssp_value) goto bad_service_param; if (ssp_value > hsp_value) { sp->cls3.rcvDataSizeLsb = hsp->cls3.rcvDataSizeLsb; sp->cls3.rcvDataSizeMsb = hsp->cls3.rcvDataSizeMsb; } } } else if (class == CLASS3) goto bad_service_param; /* * Preserve the upper four bits of the MSB from the PLOGI response. * These bits contain the Buffer-to-Buffer State Change Number * from the target and need to be passed to the FW. */ hsp_value = (hsp->cmn.bbRcvSizeMsb << 8) | hsp->cmn.bbRcvSizeLsb; ssp_value = (sp->cmn.bbRcvSizeMsb << 8) | sp->cmn.bbRcvSizeLsb; if (ssp_value > hsp_value) { sp->cmn.bbRcvSizeLsb = hsp->cmn.bbRcvSizeLsb; sp->cmn.bbRcvSizeMsb = (sp->cmn.bbRcvSizeMsb & 0xF0) | (hsp->cmn.bbRcvSizeMsb & 0x0F); } memcpy(&ndlp->nlp_nodename, &sp->nodeName, sizeof (struct lpfc_name)); memcpy(&ndlp->nlp_portname, &sp->portName, sizeof (struct lpfc_name)); return 1; bad_service_param: lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY, "0207 Device %x " "(%02x:%02x:%02x:%02x:%02x:%02x:%02x:%02x) sent " "invalid service parameters. Ignoring device.\n", ndlp->nlp_DID, sp->nodeName.u.wwn[0], sp->nodeName.u.wwn[1], sp->nodeName.u.wwn[2], sp->nodeName.u.wwn[3], sp->nodeName.u.wwn[4], sp->nodeName.u.wwn[5], sp->nodeName.u.wwn[6], sp->nodeName.u.wwn[7]); return 0; } static void * lpfc_check_elscmpl_iocb(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb, struct lpfc_iocbq *rspiocb) { struct lpfc_dmabuf *pcmd, *prsp; uint32_t *lp; void *ptr = NULL; IOCB_t *irsp; irsp = &rspiocb->iocb; pcmd = (struct lpfc_dmabuf *) cmdiocb->context2; /* For lpfc_els_abort, context2 could be zero'ed to delay * freeing associated memory till after ABTS completes. */ if (pcmd) { prsp = list_get_first(&pcmd->list, struct lpfc_dmabuf, list); if (prsp) { lp = (uint32_t *) prsp->virt; ptr = (void *)((uint8_t *)lp + sizeof(uint32_t)); } } else { /* Force ulpStatus error since we are returning NULL ptr */ if (!(irsp->ulpStatus)) { irsp->ulpStatus = IOSTAT_LOCAL_REJECT; irsp->un.ulpWord[4] = IOERR_SLI_ABORTED; } ptr = NULL; } return ptr; } /* * Free resources / clean up outstanding I/Os * associated with a LPFC_NODELIST entry. This * routine effectively results in a "software abort". */ void lpfc_els_abort(struct lpfc_hba *phba, struct lpfc_nodelist *ndlp) { LIST_HEAD(abort_list); struct lpfc_sli_ring *pring; struct lpfc_iocbq *iocb, *next_iocb; pring = lpfc_phba_elsring(phba); /* In case of error recovery path, we might have a NULL pring here */ if (unlikely(!pring)) return; /* Abort outstanding I/O on NPort <nlp_DID> */ lpfc_printf_vlog(ndlp->vport, KERN_INFO, LOG_DISCOVERY, "2819 Abort outstanding I/O on NPort x%x " "Data: x%x x%x x%x\n", ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_state, ndlp->nlp_rpi); /* Clean up all fabric IOs first.*/ lpfc_fabric_abort_nport(ndlp); /* * Lock the ELS ring txcmplq for SLI3/SLI4 and build a local list * of all ELS IOs that need an ABTS. The IOs need to stay on the * txcmplq so that the abort operation completes them successfully. */ spin_lock_irq(&phba->hbalock); if (phba->sli_rev == LPFC_SLI_REV4) spin_lock(&pring->ring_lock); list_for_each_entry_safe(iocb, next_iocb, &pring->txcmplq, list) { /* Add to abort_list on on NDLP match. */ if (lpfc_check_sli_ndlp(phba, pring, iocb, ndlp)) list_add_tail(&iocb->dlist, &abort_list); } if (phba->sli_rev == LPFC_SLI_REV4) spin_unlock(&pring->ring_lock); spin_unlock_irq(&phba->hbalock); /* Abort the targeted IOs and remove them from the abort list. */ list_for_each_entry_safe(iocb, next_iocb, &abort_list, dlist) { spin_lock_irq(&phba->hbalock); list_del_init(&iocb->dlist); lpfc_sli_issue_abort_iotag(phba, pring, iocb); spin_unlock_irq(&phba->hbalock); } INIT_LIST_HEAD(&abort_list); /* Now process the txq */ spin_lock_irq(&phba->hbalock); if (phba->sli_rev == LPFC_SLI_REV4) spin_lock(&pring->ring_lock); list_for_each_entry_safe(iocb, next_iocb, &pring->txq, list) { /* Check to see if iocb matches the nport we are looking for */ if (lpfc_check_sli_ndlp(phba, pring, iocb, ndlp)) { list_del_init(&iocb->list); list_add_tail(&iocb->list, &abort_list); } } if (phba->sli_rev == LPFC_SLI_REV4) spin_unlock(&pring->ring_lock); spin_unlock_irq(&phba->hbalock); /* Cancel all the IOCBs from the completions list */ lpfc_sli_cancel_iocbs(phba, &abort_list, IOSTAT_LOCAL_REJECT, IOERR_SLI_ABORTED); lpfc_cancel_retry_delay_tmo(phba->pport, ndlp); } static int lpfc_rcv_plogi(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, struct lpfc_iocbq *cmdiocb) { struct Scsi_Host *shost = lpfc_shost_from_vport(vport); struct lpfc_hba *phba = vport->phba; struct lpfc_dmabuf *pcmd; uint64_t nlp_portwwn = 0; uint32_t *lp; IOCB_t *icmd; struct serv_parm *sp; uint32_t ed_tov; LPFC_MBOXQ_t *mbox; struct ls_rjt stat; uint32_t vid, flag; int rc; memset(&stat, 0, sizeof (struct ls_rjt)); pcmd = (struct lpfc_dmabuf *) cmdiocb->context2; lp = (uint32_t *) pcmd->virt; sp = (struct serv_parm *) ((uint8_t *) lp + sizeof (uint32_t)); if (wwn_to_u64(sp->portName.u.wwn) == 0) { lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS, "0140 PLOGI Reject: invalid nname\n"); stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC; stat.un.b.lsRjtRsnCodeExp = LSEXP_INVALID_PNAME; lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, NULL); return 0; } if (wwn_to_u64(sp->nodeName.u.wwn) == 0) { lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS, "0141 PLOGI Reject: invalid pname\n"); stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC; stat.un.b.lsRjtRsnCodeExp = LSEXP_INVALID_NNAME; lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, NULL); return 0; } nlp_portwwn = wwn_to_u64(ndlp->nlp_portname.u.wwn); if ((lpfc_check_sparm(vport, ndlp, sp, CLASS3, 0) == 0)) { /* Reject this request because invalid parameters */ stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC; stat.un.b.lsRjtRsnCodeExp = LSEXP_SPARM_OPTIONS; lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, NULL); return 0; } icmd = &cmdiocb->iocb; /* PLOGI chkparm OK */ lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, "0114 PLOGI chkparm OK Data: x%x x%x x%x " "x%x x%x x%x\n", ndlp->nlp_DID, ndlp->nlp_state, ndlp->nlp_flag, ndlp->nlp_rpi, vport->port_state, vport->fc_flag); if (vport->cfg_fcp_class == 2 && sp->cls2.classValid) ndlp->nlp_fcp_info |= CLASS2; else ndlp->nlp_fcp_info |= CLASS3; 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; /* if already logged in, do implicit logout */ switch (ndlp->nlp_state) { case NLP_STE_NPR_NODE: if (!(ndlp->nlp_flag & NLP_NPR_ADISC)) break; /* fall through */ case NLP_STE_REG_LOGIN_ISSUE: case NLP_STE_PRLI_ISSUE: case NLP_STE_UNMAPPED_NODE: case NLP_STE_MAPPED_NODE: /* For initiators, lpfc_plogi_confirm_nport skips fabric did. * For target mode, execute implicit logo. * Fabric nodes go into NPR. */ if (!(ndlp->nlp_type & NLP_FABRIC) && !(phba->nvmet_support)) { lpfc_els_rsp_acc(vport, ELS_CMD_PLOGI, cmdiocb, ndlp, NULL); return 1; } if (nlp_portwwn != 0 && nlp_portwwn != wwn_to_u64(sp->portName.u.wwn)) lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS, "0143 PLOGI recv'd from DID: x%x " "WWPN changed: old %llx new %llx\n", ndlp->nlp_DID, (unsigned long long)nlp_portwwn, (unsigned long long) wwn_to_u64(sp->portName.u.wwn)); ndlp->nlp_prev_state = ndlp->nlp_state; /* rport needs to be unregistered first */ lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); break; } ndlp->nlp_type &= ~(NLP_FCP_TARGET | NLP_FCP_INITIATOR); ndlp->nlp_type &= ~(NLP_NVME_TARGET | NLP_NVME_INITIATOR); ndlp->nlp_fcp_info &= ~NLP_FCP_2_DEVICE; ndlp->nlp_flag &= ~NLP_FIRSTBURST; /* Check for Nport to NPort pt2pt protocol */ if ((vport->fc_flag & FC_PT2PT) && !(vport->fc_flag & FC_PT2PT_PLOGI)) { /* rcv'ed PLOGI decides what our NPortId will be */ vport->fc_myDID = icmd->un.rcvels.parmRo; ed_tov = be32_to_cpu(sp->cmn.e_d_tov); if (sp->cmn.edtovResolution) { /* E_D_TOV ticks are in nanoseconds */ ed_tov = (phba->fc_edtov + 999999) / 1000000; } /* * For pt-to-pt, use the larger EDTOV * RATOV = 2 * EDTOV */ if (ed_tov > phba->fc_edtov) phba->fc_edtov = ed_tov; phba->fc_ratov = (2 * phba->fc_edtov) / 1000; memcpy(&phba->fc_fabparam, sp, sizeof(struct serv_parm)); /* Issue config_link / reg_vfi to account for updated TOV's */ if (phba->sli_rev == LPFC_SLI_REV4) lpfc_issue_reg_vfi(vport); else { mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); if (mbox == NULL) goto out; 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 out; } } lpfc_can_disctmo(vport); } ndlp->nlp_flag &= ~NLP_SUPPRESS_RSP; if ((phba->sli.sli_flag & LPFC_SLI_SUPPRESS_RSP) && sp->cmn.valid_vendor_ver_level) { vid = be32_to_cpu(sp->un.vv.vid); flag = be32_to_cpu(sp->un.vv.flags); if ((vid == LPFC_VV_EMLX_ID) && (flag & LPFC_VV_SUPPRESS_RSP)) ndlp->nlp_flag |= NLP_SUPPRESS_RSP; } mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); if (!mbox) goto out; /* Registering an existing RPI behaves differently for SLI3 vs SLI4 */ if (phba->sli_rev == LPFC_SLI_REV4) lpfc_unreg_rpi(vport, ndlp); rc = lpfc_reg_rpi(phba, vport->vpi, icmd->un.rcvels.remoteID, (uint8_t *) sp, mbox, ndlp->nlp_rpi); if (rc) { mempool_free(mbox, phba->mbox_mem_pool); goto out; } /* ACC PLOGI rsp command needs to execute first, * queue this mbox command to be processed later. */ mbox->mbox_cmpl = lpfc_mbx_cmpl_reg_login; /* * mbox->ctx_ndlp = lpfc_nlp_get(ndlp) deferred until mailbox * command issued in lpfc_cmpl_els_acc(). */ mbox->vport = vport; spin_lock_irq(shost->host_lock); ndlp->nlp_flag |= (NLP_ACC_REGLOGIN | NLP_RCV_PLOGI); spin_unlock_irq(shost->host_lock); /* * If there is an outstanding PLOGI issued, abort it before * sending ACC rsp for received PLOGI. If pending plogi * is not canceled here, the plogi will be rejected by * remote port and will be retried. On a configuration with * single discovery thread, this will cause a huge delay in * discovery. Also this will cause multiple state machines * running in parallel for this node. */ if (ndlp->nlp_state == NLP_STE_PLOGI_ISSUE) { /* software abort outstanding PLOGI */ lpfc_els_abort(phba, ndlp); } if ((vport->port_type == LPFC_NPIV_PORT && vport->cfg_restrict_login)) { /* In order to preserve RPIs, we want to cleanup * the default RPI the firmware created to rcv * this ELS request. The only way to do this is * to register, then unregister the RPI. */ spin_lock_irq(shost->host_lock); ndlp->nlp_flag |= NLP_RM_DFLT_RPI; spin_unlock_irq(shost->host_lock); stat.un.b.lsRjtRsnCode = LSRJT_INVALID_CMD; stat.un.b.lsRjtRsnCodeExp = LSEXP_NOTHING_MORE; rc = lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, mbox); if (rc) mempool_free(mbox, phba->mbox_mem_pool); return 1; } rc = lpfc_els_rsp_acc(vport, ELS_CMD_PLOGI, cmdiocb, ndlp, mbox); if (rc) mempool_free(mbox, phba->mbox_mem_pool); return 1; out: stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC; stat.un.b.lsRjtRsnCodeExp = LSEXP_OUT_OF_RESOURCE; lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, NULL); return 0; } /** * lpfc_mbx_cmpl_resume_rpi - Resume RPI completion routine * @phba: pointer to lpfc hba data structure. * @mboxq: pointer to mailbox object * * This routine is invoked to issue a completion to a rcv'ed * ADISC or PDISC after the paused RPI has been resumed. **/ static void lpfc_mbx_cmpl_resume_rpi(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq) { struct lpfc_vport *vport; struct lpfc_iocbq *elsiocb; struct lpfc_nodelist *ndlp; uint32_t cmd; elsiocb = (struct lpfc_iocbq *)mboxq->ctx_buf; ndlp = (struct lpfc_nodelist *)mboxq->ctx_ndlp; vport = mboxq->vport; cmd = elsiocb->drvrTimeout; if (cmd == ELS_CMD_ADISC) { lpfc_els_rsp_adisc_acc(vport, elsiocb, ndlp); } else { lpfc_els_rsp_acc(vport, ELS_CMD_PLOGI, elsiocb, ndlp, NULL); } kfree(elsiocb); mempool_free(mboxq, phba->mbox_mem_pool); } static int lpfc_rcv_padisc(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, struct lpfc_iocbq *cmdiocb) { struct Scsi_Host *shost = lpfc_shost_from_vport(vport); struct lpfc_iocbq *elsiocb; struct lpfc_dmabuf *pcmd; struct serv_parm *sp; struct lpfc_name *pnn, *ppn; struct ls_rjt stat; ADISC *ap; IOCB_t *icmd; uint32_t *lp; uint32_t cmd; pcmd = (struct lpfc_dmabuf *) cmdiocb->context2; lp = (uint32_t *) pcmd->virt; cmd = *lp++; if (cmd == ELS_CMD_ADISC) { ap = (ADISC *) lp; pnn = (struct lpfc_name *) & ap->nodeName; ppn = (struct lpfc_name *) & ap->portName; } else { sp = (struct serv_parm *) lp; pnn = (struct lpfc_name *) & sp->nodeName; ppn = (struct lpfc_name *) & sp->portName; } icmd = &cmdiocb->iocb; if (icmd->ulpStatus == 0 && lpfc_check_adisc(vport, ndlp, pnn, ppn)) { /* * As soon as we send ACC, the remote NPort can * start sending us data. Thus, for SLI4 we must * resume the RPI before the ACC goes out. */ if (vport->phba->sli_rev == LPFC_SLI_REV4) { elsiocb = kmalloc(sizeof(struct lpfc_iocbq), GFP_KERNEL); if (elsiocb) { /* Save info from cmd IOCB used in rsp */ memcpy((uint8_t *)elsiocb, (uint8_t *)cmdiocb, sizeof(struct lpfc_iocbq)); /* Save the ELS cmd */ elsiocb->drvrTimeout = cmd; lpfc_sli4_resume_rpi(ndlp, lpfc_mbx_cmpl_resume_rpi, elsiocb); goto out; } } if (cmd == ELS_CMD_ADISC) { lpfc_els_rsp_adisc_acc(vport, cmdiocb, ndlp); } else { lpfc_els_rsp_acc(vport, ELS_CMD_PLOGI, cmdiocb, ndlp, NULL); } out: /* If we are authenticated, move to the proper state */ if (ndlp->nlp_type & NLP_FCP_TARGET) lpfc_nlp_set_state(vport, ndlp, NLP_STE_MAPPED_NODE); else lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE); return 1; } /* 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); /* 1 sec timeout */ mod_timer(&ndlp->nlp_delayfunc, jiffies + msecs_to_jiffies(1000)); spin_lock_irq(shost->host_lock); ndlp->nlp_flag |= NLP_DELAY_TMO; spin_unlock_irq(shost->host_lock); ndlp->nlp_last_elscmd = ELS_CMD_PLOGI; ndlp->nlp_prev_state = ndlp->nlp_state; lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); return 0; } static int lpfc_rcv_logo(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, struct lpfc_iocbq *cmdiocb, uint32_t els_cmd) { struct Scsi_Host *shost = lpfc_shost_from_vport(vport); struct lpfc_hba *phba = vport->phba; struct lpfc_vport **vports; int i, active_vlink_present = 0 ; /* Put ndlp in NPR state with 1 sec timeout for plogi, ACC logo */ /* Only call LOGO ACC for first LOGO, this avoids sending unnecessary * PLOGIs during LOGO storms from a device. */ spin_lock_irq(shost->host_lock); ndlp->nlp_flag |= NLP_LOGO_ACC; spin_unlock_irq(shost->host_lock); if (els_cmd == ELS_CMD_PRLO) lpfc_els_rsp_acc(vport, ELS_CMD_PRLO, cmdiocb, ndlp, NULL); else lpfc_els_rsp_acc(vport, ELS_CMD_ACC, cmdiocb, ndlp, NULL); if (ndlp->nlp_DID == Fabric_DID) { if (vport->port_state <= LPFC_FDISC) goto out; lpfc_linkdown_port(vport); spin_lock_irq(shost->host_lock); vport->fc_flag |= FC_VPORT_LOGO_RCVD; spin_unlock_irq(shost->host_lock); vports = lpfc_create_vport_work_array(phba); if (vports) { for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) { if ((!(vports[i]->fc_flag & FC_VPORT_LOGO_RCVD)) && (vports[i]->port_state > LPFC_FDISC)) { active_vlink_present = 1; break; } } lpfc_destroy_vport_work_array(phba, vports); } /* * Don't re-instantiate if vport is marked for deletion. * If we are here first then vport_delete is going to wait * for discovery to complete. */ if (!(vport->load_flag & FC_UNLOADING) && active_vlink_present) { /* * If there are other active VLinks present, * re-instantiate the Vlink using FDISC. */ mod_timer(&ndlp->nlp_delayfunc, jiffies + msecs_to_jiffies(1000)); spin_lock_irq(shost->host_lock); ndlp->nlp_flag |= NLP_DELAY_TMO; spin_unlock_irq(shost->host_lock); ndlp->nlp_last_elscmd = ELS_CMD_FDISC; vport->port_state = LPFC_FDISC; } else { spin_lock_irq(shost->host_lock); phba->pport->fc_flag &= ~FC_LOGO_RCVD_DID_CHNG; spin_unlock_irq(shost->host_lock); lpfc_retry_pport_discovery(phba); } } else if ((!(ndlp->nlp_type & NLP_FABRIC) && ((ndlp->nlp_type & NLP_FCP_TARGET) || !(ndlp->nlp_type & NLP_FCP_INITIATOR))) || (ndlp->nlp_state == NLP_STE_ADISC_ISSUE)) { /* Only try to re-login if this is NOT a Fabric Node */ mod_timer(&ndlp->nlp_delayfunc, jiffies + msecs_to_jiffies(1000 * 1)); spin_lock_irq(shost->host_lock); ndlp->nlp_flag |= NLP_DELAY_TMO; spin_unlock_irq(shost->host_lock); ndlp->nlp_last_elscmd = ELS_CMD_PLOGI; } out: ndlp->nlp_prev_state = ndlp->nlp_state; lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); spin_lock_irq(shost->host_lock); ndlp->nlp_flag &= ~NLP_NPR_ADISC; spin_unlock_irq(shost->host_lock); /* The driver has to wait until the ACC completes before it continues * processing the LOGO. The action will resume in * lpfc_cmpl_els_logo_acc routine. Since part of processing includes an * unreg_login, the driver waits so the ACC does not get aborted. */ return 0; } static uint32_t lpfc_rcv_prli_support_check(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, struct lpfc_iocbq *cmdiocb) { struct ls_rjt stat; uint32_t *payload; uint32_t cmd; payload = ((struct lpfc_dmabuf *)cmdiocb->context2)->virt; cmd = *payload; if (vport->phba->nvmet_support) { /* Must be a NVME PRLI */ if (cmd == ELS_CMD_PRLI) goto out; } else { /* Initiator mode. */ if (!vport->nvmei_support && (cmd == ELS_CMD_NVMEPRLI)) goto out; } return 1; out: lpfc_printf_vlog(vport, KERN_WARNING, LOG_NVME_DISC, "6115 Rcv PRLI (%x) check failed: ndlp rpi %d " "state x%x flags x%x\n", cmd, ndlp->nlp_rpi, ndlp->nlp_state, ndlp->nlp_flag); memset(&stat, 0, sizeof(struct ls_rjt)); stat.un.b.lsRjtRsnCode = LSRJT_CMD_UNSUPPORTED; stat.un.b.lsRjtRsnCodeExp = LSEXP_REQ_UNSUPPORTED; lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, NULL); return 0; } static void lpfc_rcv_prli(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, struct lpfc_iocbq *cmdiocb) { struct lpfc_hba *phba = vport->phba; struct lpfc_dmabuf *pcmd; uint32_t *lp; PRLI *npr; struct fc_rport *rport = ndlp->rport; u32 roles; pcmd = (struct lpfc_dmabuf *) cmdiocb->context2; lp = (uint32_t *) pcmd->virt; npr = (PRLI *) ((uint8_t *) lp + sizeof (uint32_t)); if ((npr->prliType == PRLI_FCP_TYPE) || (npr->prliType == PRLI_NVME_TYPE)) { if (npr->initiatorFunc) { if (npr->prliType == PRLI_FCP_TYPE) ndlp->nlp_type |= NLP_FCP_INITIATOR; if (npr->prliType == PRLI_NVME_TYPE) ndlp->nlp_type |= NLP_NVME_INITIATOR; } if (npr->targetFunc) { if (npr->prliType == PRLI_FCP_TYPE) ndlp->nlp_type |= NLP_FCP_TARGET; if (npr->prliType == PRLI_NVME_TYPE) ndlp->nlp_type |= NLP_NVME_TARGET; if (npr->writeXferRdyDis) ndlp->nlp_flag |= NLP_FIRSTBURST; } if (npr->Retry) ndlp->nlp_fcp_info |= NLP_FCP_2_DEVICE; /* If this driver is in nvme target mode, set the ndlp's fc4 * type to NVME provided the PRLI response claims NVME FC4 * type. Target mode does not issue gft_id so doesn't get * the fc4 type set until now. */ if (phba->nvmet_support && (npr->prliType == PRLI_NVME_TYPE)) { ndlp->nlp_fc4_type |= NLP_FC4_NVME; lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE); } if (npr->prliType == PRLI_FCP_TYPE) ndlp->nlp_fc4_type |= NLP_FC4_FCP; } if (rport) { /* We need to update the rport role values */ roles = FC_RPORT_ROLE_UNKNOWN; if (ndlp->nlp_type & NLP_FCP_INITIATOR) roles |= FC_RPORT_ROLE_FCP_INITIATOR; if (ndlp->nlp_type & NLP_FCP_TARGET) roles |= FC_RPORT_ROLE_FCP_TARGET; lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_RPORT, "rport rolechg: role:x%x did:x%x flg:x%x", roles, ndlp->nlp_DID, ndlp->nlp_flag); if (vport->cfg_enable_fc4_type != LPFC_ENABLE_NVME) fc_remote_port_rolechg(rport, roles); } } static uint32_t lpfc_disc_set_adisc(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp) { struct Scsi_Host *shost = lpfc_shost_from_vport(vport); if (!(ndlp->nlp_flag & NLP_RPI_REGISTERED)) { spin_lock_irq(shost->host_lock); ndlp->nlp_flag &= ~NLP_NPR_ADISC; spin_unlock_irq(shost->host_lock); return 0; } if (!(vport->fc_flag & FC_PT2PT)) { /* Check config parameter use-adisc or FCP-2 */ if ((vport->cfg_use_adisc && (vport->fc_flag & FC_RSCN_MODE)) || ((ndlp->nlp_fcp_info & NLP_FCP_2_DEVICE) && (ndlp->nlp_type & NLP_FCP_TARGET))) { spin_lock_irq(shost->host_lock); ndlp->nlp_flag |= NLP_NPR_ADISC; spin_unlock_irq(shost->host_lock); return 1; } } spin_lock_irq(shost->host_lock); ndlp->nlp_flag &= ~NLP_NPR_ADISC; spin_unlock_irq(shost->host_lock); lpfc_unreg_rpi(vport, ndlp); return 0; } /** * lpfc_release_rpi - Release a RPI by issuing unreg_login mailbox cmd. * @phba : Pointer to lpfc_hba structure. * @vport: Pointer to lpfc_vport structure. * @rpi : rpi to be release. * * This function will send a unreg_login mailbox command to the firmware * to release a rpi. **/ static void lpfc_release_rpi(struct lpfc_hba *phba, struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, uint16_t rpi) { LPFC_MBOXQ_t *pmb; int rc; /* If there is already an UNREG in progress for this ndlp, * no need to queue up another one. */ if (ndlp->nlp_flag & NLP_UNREG_INP) { lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, "1435 release_rpi SKIP UNREG x%x on " "NPort x%x deferred x%x flg x%x " "Data: %p\n", ndlp->nlp_rpi, ndlp->nlp_DID, ndlp->nlp_defer_did, ndlp->nlp_flag, ndlp); return; } pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); if (!pmb) lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX, "2796 mailbox memory allocation failed \n"); else { lpfc_unreg_login(phba, vport->vpi, rpi, pmb); pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl; pmb->vport = vport; pmb->ctx_ndlp = ndlp; if (((ndlp->nlp_DID & Fabric_DID_MASK) != Fabric_DID_MASK) && (!(vport->fc_flag & FC_OFFLINE_MODE))) ndlp->nlp_flag |= NLP_UNREG_INP; lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, "1437 release_rpi UNREG x%x " "on NPort x%x flg x%x\n", ndlp->nlp_rpi, ndlp->nlp_DID, ndlp->nlp_flag); rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT); if (rc == MBX_NOT_FINISHED) mempool_free(pmb, phba->mbox_mem_pool); } } static uint32_t lpfc_disc_illegal(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, void *arg, uint32_t evt) { struct lpfc_hba *phba; LPFC_MBOXQ_t *pmb = (LPFC_MBOXQ_t *) arg; uint16_t rpi; phba = vport->phba; /* Release the RPI if reglogin completing */ if (!(phba->pport->load_flag & FC_UNLOADING) && (evt == NLP_EVT_CMPL_REG_LOGIN) && (!pmb->u.mb.mbxStatus)) { rpi = pmb->u.mb.un.varWords[0]; lpfc_release_rpi(phba, vport, ndlp, rpi); } lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY, "0271 Illegal State Transition: node x%x " "event x%x, state x%x Data: x%x x%x\n", ndlp->nlp_DID, evt, ndlp->nlp_state, ndlp->nlp_rpi, ndlp->nlp_flag); return ndlp->nlp_state; } static uint32_t lpfc_cmpl_plogi_illegal(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, void *arg, uint32_t evt) { /* This transition is only legal if we previously * rcv'ed a PLOGI. Since we don't want 2 discovery threads * working on the same NPortID, do nothing for this thread * to stop it. */ if (!(ndlp->nlp_flag & NLP_RCV_PLOGI)) { lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY, "0272 Illegal State Transition: node x%x " "event x%x, state x%x Data: x%x x%x\n", ndlp->nlp_DID, evt, ndlp->nlp_state, ndlp->nlp_rpi, ndlp->nlp_flag); } return ndlp->nlp_state; } /* Start of Discovery State Machine routines */ static uint32_t lpfc_rcv_plogi_unused_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, void *arg, uint32_t evt) { struct lpfc_iocbq *cmdiocb; cmdiocb = (struct lpfc_iocbq *) arg; if (lpfc_rcv_plogi(vport, ndlp, cmdiocb)) { return ndlp->nlp_state; } return NLP_STE_FREED_NODE; } static uint32_t lpfc_rcv_els_unused_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, void *arg, uint32_t evt) { lpfc_issue_els_logo(vport, ndlp, 0); return ndlp->nlp_state; } static uint32_t lpfc_rcv_logo_unused_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, void *arg, uint32_t evt) { struct Scsi_Host *shost = lpfc_shost_from_vport(vport); struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; spin_lock_irq(shost->host_lock); ndlp->nlp_flag |= NLP_LOGO_ACC; spin_unlock_irq(shost->host_lock); lpfc_els_rsp_acc(vport, ELS_CMD_ACC, cmdiocb, ndlp, NULL); return ndlp->nlp_state; } static uint32_t lpfc_cmpl_logo_unused_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, void *arg, uint32_t evt) { return NLP_STE_FREED_NODE; } static uint32_t lpfc_device_rm_unused_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, void *arg, uint32_t evt) { return NLP_STE_FREED_NODE; } static uint32_t lpfc_device_recov_unused_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, void *arg, uint32_t evt) { return ndlp->nlp_state; } static uint32_t lpfc_rcv_plogi_plogi_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, void *arg, uint32_t evt) { struct Scsi_Host *shost = lpfc_shost_from_vport(vport); struct lpfc_hba *phba = vport->phba; struct lpfc_iocbq *cmdiocb = arg; struct lpfc_dmabuf *pcmd = (struct lpfc_dmabuf *) cmdiocb->context2; uint32_t *lp = (uint32_t *) pcmd->virt; struct serv_parm *sp = (struct serv_parm *) (lp + 1); struct ls_rjt stat; int port_cmp; memset(&stat, 0, sizeof (struct ls_rjt)); /* For a PLOGI, we only accept if our portname is less * than the remote portname. */ phba->fc_stat.elsLogiCol++; port_cmp = memcmp(&vport->fc_portname, &sp->portName, sizeof(struct lpfc_name)); if (port_cmp >= 0) { /* Reject this request because the remote node will accept ours */ stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC; stat.un.b.lsRjtRsnCodeExp = LSEXP_CMD_IN_PROGRESS; lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, NULL); } else { if (lpfc_rcv_plogi(vport, ndlp, cmdiocb) && (ndlp->nlp_flag & NLP_NPR_2B_DISC) && (vport->num_disc_nodes)) { spin_lock_irq(shost->host_lock); ndlp->nlp_flag &= ~NLP_NPR_2B_DISC; spin_unlock_irq(shost->host_lock); /* Check 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); } } } /* If our portname was less */ return ndlp->nlp_state; } static uint32_t lpfc_rcv_prli_plogi_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, void *arg, uint32_t evt) { struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; struct ls_rjt stat; memset(&stat, 0, sizeof (struct ls_rjt)); stat.un.b.lsRjtRsnCode = LSRJT_LOGICAL_BSY; stat.un.b.lsRjtRsnCodeExp = LSEXP_NOTHING_MORE; lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, NULL); return ndlp->nlp_state; } static uint32_t lpfc_rcv_logo_plogi_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, void *arg, uint32_t evt) { struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; /* Retrieve RPI from LOGO IOCB. RPI is used for CMD_ABORT_XRI_CN */ if (vport->phba->sli_rev == LPFC_SLI_REV3) ndlp->nlp_rpi = cmdiocb->iocb.ulpIoTag; /* software abort outstanding PLOGI */ lpfc_els_abort(vport->phba, ndlp); lpfc_rcv_logo(vport, ndlp, cmdiocb, ELS_CMD_LOGO); return ndlp->nlp_state; } static uint32_t lpfc_rcv_els_plogi_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, void *arg, uint32_t evt) { struct Scsi_Host *shost = lpfc_shost_from_vport(vport); struct lpfc_hba *phba = vport->phba; struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; /* software abort outstanding PLOGI */ lpfc_els_abort(phba, ndlp); if (evt == NLP_EVT_RCV_LOGO) { lpfc_els_rsp_acc(vport, ELS_CMD_ACC, cmdiocb, ndlp, NULL); } else { lpfc_issue_els_logo(vport, ndlp, 0); } /* Put ndlp in npr state set plogi timer for 1 sec */ mod_timer(&ndlp->nlp_delayfunc, jiffies + msecs_to_jiffies(1000 * 1)); spin_lock_irq(shost->host_lock); ndlp->nlp_flag |= NLP_DELAY_TMO; spin_unlock_irq(shost->host_lock); ndlp->nlp_last_elscmd = ELS_CMD_PLOGI; ndlp->nlp_prev_state = NLP_STE_PLOGI_ISSUE; lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); return ndlp->nlp_state; } static uint32_t lpfc_cmpl_plogi_plogi_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, void *arg, uint32_t evt) { struct lpfc_hba *phba = vport->phba; struct Scsi_Host *shost = lpfc_shost_from_vport(vport); struct lpfc_iocbq *cmdiocb, *rspiocb; struct lpfc_dmabuf *pcmd, *prsp, *mp; uint32_t *lp; uint32_t vid, flag; IOCB_t *irsp; struct serv_parm *sp; uint32_t ed_tov; LPFC_MBOXQ_t *mbox; int rc; cmdiocb = (struct lpfc_iocbq *) arg; rspiocb = cmdiocb->context_un.rsp_iocb; if (ndlp->nlp_flag & NLP_ACC_REGLOGIN) { /* Recovery from PLOGI collision logic */ return ndlp->nlp_state; } irsp = &rspiocb->iocb; if (irsp->ulpStatus) goto out; pcmd = (struct lpfc_dmabuf *) cmdiocb->context2; prsp = list_get_first(&pcmd->list, struct lpfc_dmabuf, list); if (!prsp) goto out; lp = (uint32_t *) prsp->virt; sp = (struct serv_parm *) ((uint8_t *) lp + sizeof (uint32_t)); /* Some switches have FDMI servers returning 0 for WWN */ if ((ndlp->nlp_DID != FDMI_DID) && (wwn_to_u64(sp->portName.u.wwn) == 0 || wwn_to_u64(sp->nodeName.u.wwn) == 0)) { lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS, "0142 PLOGI RSP: Invalid WWN.\n"); goto out; } if (!lpfc_check_sparm(vport, ndlp, sp, CLASS3, 0)) goto out; /* PLOGI chkparm OK */ lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, "0121 PLOGI chkparm OK Data: x%x x%x x%x x%x\n", ndlp->nlp_DID, ndlp->nlp_state, ndlp->nlp_flag, ndlp->nlp_rpi); if (vport->cfg_fcp_class == 2 && (sp->cls2.classValid)) ndlp->nlp_fcp_info |= CLASS2; else ndlp->nlp_fcp_info |= CLASS3; 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; if ((vport->fc_flag & FC_PT2PT) && (vport->fc_flag & FC_PT2PT_PLOGI)) { ed_tov = be32_to_cpu(sp->cmn.e_d_tov); if (sp->cmn.edtovResolution) { /* E_D_TOV ticks are in nanoseconds */ ed_tov = (phba->fc_edtov + 999999) / 1000000; } ndlp->nlp_flag &= ~NLP_SUPPRESS_RSP; if ((phba->sli.sli_flag & LPFC_SLI_SUPPRESS_RSP) && sp->cmn.valid_vendor_ver_level) { vid = be32_to_cpu(sp->un.vv.vid); flag = be32_to_cpu(sp->un.vv.flags); if ((vid == LPFC_VV_EMLX_ID) && (flag & LPFC_VV_SUPPRESS_RSP)) ndlp->nlp_flag |= NLP_SUPPRESS_RSP; } /* * Use the larger EDTOV * RATOV = 2 * EDTOV for pt-to-pt */ if (ed_tov > phba->fc_edtov) phba->fc_edtov = ed_tov; phba->fc_ratov = (2 * phba->fc_edtov) / 1000; memcpy(&phba->fc_fabparam, sp, sizeof(struct serv_parm)); /* Issue config_link / reg_vfi to account for updated TOV's */ if (phba->sli_rev == LPFC_SLI_REV4) { lpfc_issue_reg_vfi(vport); } else { mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); if (!mbox) { lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS, "0133 PLOGI: no memory " "for config_link " "Data: x%x x%x x%x x%x\n", ndlp->nlp_DID, ndlp->nlp_state, ndlp->nlp_flag, ndlp->nlp_rpi); goto out; } 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 out; } } } lpfc_unreg_rpi(vport, ndlp); mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); if (!mbox) { lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS, "0018 PLOGI: no memory for reg_login " "Data: x%x x%x x%x x%x\n", ndlp->nlp_DID, ndlp->nlp_state, ndlp->nlp_flag, ndlp->nlp_rpi); goto out; } if (lpfc_reg_rpi(phba, vport->vpi, irsp->un.elsreq64.remoteID, (uint8_t *) sp, mbox, ndlp->nlp_rpi) == 0) { switch (ndlp->nlp_DID) { case NameServer_DID: mbox->mbox_cmpl = lpfc_mbx_cmpl_ns_reg_login; break; case FDMI_DID: mbox->mbox_cmpl = lpfc_mbx_cmpl_fdmi_reg_login; break; default: ndlp->nlp_flag |= NLP_REG_LOGIN_SEND; mbox->mbox_cmpl = lpfc_mbx_cmpl_reg_login; } mbox->ctx_ndlp = lpfc_nlp_get(ndlp); mbox->vport = vport; if (lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT) != MBX_NOT_FINISHED) { lpfc_nlp_set_state(vport, ndlp, NLP_STE_REG_LOGIN_ISSUE); return ndlp->nlp_state; } if (ndlp->nlp_flag & NLP_REG_LOGIN_SEND) ndlp->nlp_flag &= ~NLP_REG_LOGIN_SEND; /* decrement node reference count to the failed mbox * command */ lpfc_nlp_put(ndlp); mp = (struct lpfc_dmabuf *)mbox->ctx_buf; lpfc_mbuf_free(phba, mp->virt, mp->phys); kfree(mp); mempool_free(mbox, phba->mbox_mem_pool); lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS, "0134 PLOGI: cannot issue reg_login " "Data: x%x x%x x%x x%x\n", ndlp->nlp_DID, ndlp->nlp_state, ndlp->nlp_flag, ndlp->nlp_rpi); } else { mempool_free(mbox, phba->mbox_mem_pool); lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS, "0135 PLOGI: cannot format reg_login " "Data: x%x x%x x%x x%x\n", ndlp->nlp_DID, ndlp->nlp_state, ndlp->nlp_flag, ndlp->nlp_rpi); } out: if (ndlp->nlp_DID == NameServer_DID) { lpfc_vport_set_state(vport, FC_VPORT_FAILED); lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS, "0261 Cannot Register NameServer login\n"); } /* ** In case the node reference counter does not go to zero, ensure that ** the stale state for the node is not processed. */ ndlp->nlp_prev_state = ndlp->nlp_state; lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); spin_lock_irq(shost->host_lock); ndlp->nlp_flag |= NLP_DEFER_RM; spin_unlock_irq(shost->host_lock); return NLP_STE_FREED_NODE; } static uint32_t lpfc_cmpl_logo_plogi_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, void *arg, uint32_t evt) { return ndlp->nlp_state; } static uint32_t lpfc_cmpl_reglogin_plogi_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, void *arg, uint32_t evt) { struct lpfc_hba *phba; LPFC_MBOXQ_t *pmb = (LPFC_MBOXQ_t *) arg; MAILBOX_t *mb = &pmb->u.mb; uint16_t rpi; phba = vport->phba; /* Release the RPI */ if (!(phba->pport->load_flag & FC_UNLOADING) && !mb->mbxStatus) { rpi = pmb->u.mb.un.varWords[0]; lpfc_release_rpi(phba, vport, ndlp, rpi); } return ndlp->nlp_state; } static uint32_t lpfc_device_rm_plogi_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, void *arg, uint32_t evt) { struct Scsi_Host *shost = lpfc_shost_from_vport(vport); if (ndlp->nlp_flag & NLP_NPR_2B_DISC) { spin_lock_irq(shost->host_lock); ndlp->nlp_flag |= NLP_NODEV_REMOVE; spin_unlock_irq(shost->host_lock); return ndlp->nlp_state; } else { /* software abort outstanding PLOGI */ lpfc_els_abort(vport->phba, ndlp); lpfc_drop_node(vport, ndlp); return NLP_STE_FREED_NODE; } } static uint32_t lpfc_device_recov_plogi_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, void *arg, uint32_t evt) { struct Scsi_Host *shost = lpfc_shost_from_vport(vport); struct lpfc_hba *phba = vport->phba; /* Don't do anything that will mess up processing of the * previous RSCN. */ if (vport->fc_flag & FC_RSCN_DEFERRED) return ndlp->nlp_state; /* software abort outstanding PLOGI */ lpfc_els_abort(phba, ndlp); ndlp->nlp_prev_state = NLP_STE_PLOGI_ISSUE; lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); spin_lock_irq(shost->host_lock); ndlp->nlp_flag &= ~(NLP_NODEV_REMOVE | NLP_NPR_2B_DISC); spin_unlock_irq(shost->host_lock); return ndlp->nlp_state; } static uint32_t lpfc_rcv_plogi_adisc_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, void *arg, uint32_t evt) { struct Scsi_Host *shost = lpfc_shost_from_vport(vport); struct lpfc_hba *phba = vport->phba; struct lpfc_iocbq *cmdiocb; /* software abort outstanding ADISC */ lpfc_els_abort(phba, ndlp); cmdiocb = (struct lpfc_iocbq *) arg; if (lpfc_rcv_plogi(vport, ndlp, cmdiocb)) { if (ndlp->nlp_flag & NLP_NPR_2B_DISC) { spin_lock_irq(shost->host_lock); ndlp->nlp_flag &= ~NLP_NPR_2B_DISC; spin_unlock_irq(shost->host_lock); if (vport->num_disc_nodes) lpfc_more_adisc(vport); } return ndlp->nlp_state; } ndlp->nlp_prev_state = NLP_STE_ADISC_ISSUE; lpfc_issue_els_plogi(vport, ndlp->nlp_DID, 0); lpfc_nlp_set_state(vport, ndlp, NLP_STE_PLOGI_ISSUE); return ndlp->nlp_state; } static uint32_t lpfc_rcv_prli_adisc_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, void *arg, uint32_t evt) { struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; if (lpfc_rcv_prli_support_check(vport, ndlp, cmdiocb)) lpfc_els_rsp_prli_acc(vport, cmdiocb, ndlp); return ndlp->nlp_state; } static uint32_t lpfc_rcv_logo_adisc_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, void *arg, uint32_t evt) { struct lpfc_hba *phba = vport->phba; struct lpfc_iocbq *cmdiocb; cmdiocb = (struct lpfc_iocbq *) arg; /* software abort outstanding ADISC */ lpfc_els_abort(phba, ndlp); lpfc_rcv_logo(vport, ndlp, cmdiocb, ELS_CMD_LOGO); return ndlp->nlp_state; } static uint32_t lpfc_rcv_padisc_adisc_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, void *arg, uint32_t evt) { struct lpfc_iocbq *cmdiocb; cmdiocb = (struct lpfc_iocbq *) arg; lpfc_rcv_padisc(vport, ndlp, cmdiocb); return ndlp->nlp_state; } static uint32_t lpfc_rcv_prlo_adisc_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, void *arg, uint32_t evt) { struct lpfc_iocbq *cmdiocb; cmdiocb = (struct lpfc_iocbq *) arg; /* Treat like rcv logo */ lpfc_rcv_logo(vport, ndlp, cmdiocb, ELS_CMD_PRLO); return ndlp->nlp_state; } static uint32_t lpfc_cmpl_adisc_adisc_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, void *arg, uint32_t evt) { struct Scsi_Host *shost = lpfc_shost_from_vport(vport); struct lpfc_hba *phba = vport->phba; struct lpfc_iocbq *cmdiocb, *rspiocb; IOCB_t *irsp; ADISC *ap; int rc; cmdiocb = (struct lpfc_iocbq *) arg; rspiocb = cmdiocb->context_un.rsp_iocb; ap = (ADISC *)lpfc_check_elscmpl_iocb(phba, cmdiocb, rspiocb); irsp = &rspiocb->iocb; if ((irsp->ulpStatus) || (!lpfc_check_adisc(vport, ndlp, &ap->nodeName, &ap->portName))) { /* 1 sec timeout */ mod_timer(&ndlp->nlp_delayfunc, jiffies + msecs_to_jiffies(1000)); spin_lock_irq(shost->host_lock); ndlp->nlp_flag |= NLP_DELAY_TMO; spin_unlock_irq(shost->host_lock); ndlp->nlp_last_elscmd = ELS_CMD_PLOGI; memset(&ndlp->nlp_nodename, 0, sizeof(struct lpfc_name)); memset(&ndlp->nlp_portname, 0, sizeof(struct lpfc_name)); ndlp->nlp_prev_state = NLP_STE_ADISC_ISSUE; lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); lpfc_unreg_rpi(vport, ndlp); return ndlp->nlp_state; } if (phba->sli_rev == LPFC_SLI_REV4) { rc = lpfc_sli4_resume_rpi(ndlp, NULL, NULL); if (rc) { /* Stay in state and retry. */ ndlp->nlp_prev_state = NLP_STE_ADISC_ISSUE; return ndlp->nlp_state; } } if (ndlp->nlp_type & NLP_FCP_TARGET) { ndlp->nlp_prev_state = NLP_STE_ADISC_ISSUE; lpfc_nlp_set_state(vport, ndlp, NLP_STE_MAPPED_NODE); } else { ndlp->nlp_prev_state = NLP_STE_ADISC_ISSUE; lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE); } return ndlp->nlp_state; } static uint32_t lpfc_device_rm_adisc_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, void *arg, uint32_t evt) { struct Scsi_Host *shost = lpfc_shost_from_vport(vport); if (ndlp->nlp_flag & NLP_NPR_2B_DISC) { spin_lock_irq(shost->host_lock); ndlp->nlp_flag |= NLP_NODEV_REMOVE; spin_unlock_irq(shost->host_lock); return ndlp->nlp_state; } else { /* software abort outstanding ADISC */ lpfc_els_abort(vport->phba, ndlp); lpfc_drop_node(vport, ndlp); return NLP_STE_FREED_NODE; } } static uint32_t lpfc_device_recov_adisc_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, void *arg, uint32_t evt) { struct Scsi_Host *shost = lpfc_shost_from_vport(vport); struct lpfc_hba *phba = vport->phba; /* Don't do anything that will mess up processing of the * previous RSCN. */ if (vport->fc_flag & FC_RSCN_DEFERRED) return ndlp->nlp_state; /* software abort outstanding ADISC */ lpfc_els_abort(phba, ndlp); ndlp->nlp_prev_state = NLP_STE_ADISC_ISSUE; lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); spin_lock_irq(shost->host_lock); ndlp->nlp_flag &= ~(NLP_NODEV_REMOVE | NLP_NPR_2B_DISC); spin_unlock_irq(shost->host_lock); lpfc_disc_set_adisc(vport, ndlp); return ndlp->nlp_state; } static uint32_t lpfc_rcv_plogi_reglogin_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, void *arg, uint32_t evt) { struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; lpfc_rcv_plogi(vport, ndlp, cmdiocb); return ndlp->nlp_state; } static uint32_t lpfc_rcv_prli_reglogin_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, void *arg, uint32_t evt) { struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; struct ls_rjt stat; if (!lpfc_rcv_prli_support_check(vport, ndlp, cmdiocb)) { return ndlp->nlp_state; } if (vport->phba->nvmet_support) { /* NVME Target mode. Handle and respond to the PRLI and * transition to UNMAPPED provided the RPI has completed * registration. */ if (ndlp->nlp_flag & NLP_RPI_REGISTERED) { lpfc_rcv_prli(vport, ndlp, cmdiocb); lpfc_els_rsp_prli_acc(vport, cmdiocb, ndlp); } else { /* RPI registration has not completed. Reject the PRLI * to prevent an illegal state transition when the * rpi registration does complete. */ memset(&stat, 0, sizeof(struct ls_rjt)); stat.un.b.lsRjtRsnCode = LSRJT_LOGICAL_BSY; stat.un.b.lsRjtRsnCodeExp = LSEXP_NOTHING_MORE; lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, NULL); return ndlp->nlp_state; } } else { /* Initiator mode. */ lpfc_els_rsp_prli_acc(vport, cmdiocb, ndlp); } return ndlp->nlp_state; } static uint32_t lpfc_rcv_logo_reglogin_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, void *arg, uint32_t evt) { struct lpfc_hba *phba = vport->phba; struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; LPFC_MBOXQ_t *mb; LPFC_MBOXQ_t *nextmb; struct lpfc_dmabuf *mp; cmdiocb = (struct lpfc_iocbq *) arg; /* cleanup any ndlp on mbox q waiting for reglogin cmpl */ if ((mb = phba->sli.mbox_active)) { if ((mb->u.mb.mbxCommand == MBX_REG_LOGIN64) && (ndlp == (struct lpfc_nodelist *)mb->ctx_ndlp)) { ndlp->nlp_flag &= ~NLP_REG_LOGIN_SEND; lpfc_nlp_put(ndlp); mb->ctx_ndlp = NULL; mb->mbox_cmpl = lpfc_sli_def_mbox_cmpl; } } spin_lock_irq(&phba->hbalock); list_for_each_entry_safe(mb, nextmb, &phba->sli.mboxq, list) { if ((mb->u.mb.mbxCommand == MBX_REG_LOGIN64) && (ndlp == (struct lpfc_nodelist *)mb->ctx_ndlp)) { mp = (struct lpfc_dmabuf *)(mb->ctx_buf); if (mp) { __lpfc_mbuf_free(phba, mp->virt, mp->phys); kfree(mp); } ndlp->nlp_flag &= ~NLP_REG_LOGIN_SEND; lpfc_nlp_put(ndlp); list_del(&mb->list); phba->sli.mboxq_cnt--; mempool_free(mb, phba->mbox_mem_pool); } } spin_unlock_irq(&phba->hbalock); lpfc_rcv_logo(vport, ndlp, cmdiocb, ELS_CMD_LOGO); return ndlp->nlp_state; } static uint32_t lpfc_rcv_padisc_reglogin_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, void *arg, uint32_t evt) { struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; lpfc_rcv_padisc(vport, ndlp, cmdiocb); return ndlp->nlp_state; } static uint32_t lpfc_rcv_prlo_reglogin_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, void *arg, uint32_t evt) { struct lpfc_iocbq *cmdiocb; cmdiocb = (struct lpfc_iocbq *) arg; lpfc_els_rsp_acc(vport, ELS_CMD_PRLO, cmdiocb, ndlp, NULL); return ndlp->nlp_state; } static uint32_t lpfc_cmpl_reglogin_reglogin_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, void *arg, uint32_t evt) { struct Scsi_Host *shost = lpfc_shost_from_vport(vport); struct lpfc_hba *phba = vport->phba; LPFC_MBOXQ_t *pmb = (LPFC_MBOXQ_t *) arg; MAILBOX_t *mb = &pmb->u.mb; uint32_t did = mb->un.varWords[1]; if (mb->mbxStatus) { /* RegLogin failed */ lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY, "0246 RegLogin failed Data: x%x x%x x%x x%x " "x%x\n", did, mb->mbxStatus, vport->port_state, mb->un.varRegLogin.vpi, mb->un.varRegLogin.rpi); /* * If RegLogin failed due to lack of HBA resources do not * retry discovery. */ if (mb->mbxStatus == MBXERR_RPI_FULL) { ndlp->nlp_prev_state = NLP_STE_REG_LOGIN_ISSUE; lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); return ndlp->nlp_state; } /* Put ndlp in npr state set plogi timer for 1 sec */ mod_timer(&ndlp->nlp_delayfunc, jiffies + msecs_to_jiffies(1000 * 1)); spin_lock_irq(shost->host_lock); ndlp->nlp_flag |= NLP_DELAY_TMO; spin_unlock_irq(shost->host_lock); ndlp->nlp_last_elscmd = ELS_CMD_PLOGI; lpfc_issue_els_logo(vport, ndlp, 0); ndlp->nlp_prev_state = NLP_STE_REG_LOGIN_ISSUE; lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); return ndlp->nlp_state; } /* SLI4 ports have preallocated logical rpis. */ if (phba->sli_rev < LPFC_SLI_REV4) ndlp->nlp_rpi = mb->un.varWords[0]; ndlp->nlp_flag |= NLP_RPI_REGISTERED; /* Only if we are not a fabric nport do we issue PRLI */ lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, "3066 RegLogin Complete on x%x x%x x%x\n", did, ndlp->nlp_type, ndlp->nlp_fc4_type); if (!(ndlp->nlp_type & NLP_FABRIC) && (phba->nvmet_support == 0)) { /* The driver supports FCP and NVME concurrently. If the * ndlp's nlp_fc4_type is still zero, the driver doesn't * know what PRLI to send yet. Figure that out now and * call PRLI depending on the outcome. */ if (vport->fc_flag & FC_PT2PT) { /* If we are pt2pt, there is no Fabric to determine * the FC4 type of the remote nport. So if NVME * is configured try it. */ ndlp->nlp_fc4_type |= NLP_FC4_FCP; if ((vport->cfg_enable_fc4_type == LPFC_ENABLE_BOTH) || (vport->cfg_enable_fc4_type == LPFC_ENABLE_NVME)) { ndlp->nlp_fc4_type |= NLP_FC4_NVME; /* We need to update the localport also */ lpfc_nvme_update_localport(vport); } } else if (phba->fc_topology == LPFC_TOPOLOGY_LOOP) { ndlp->nlp_fc4_type |= NLP_FC4_FCP; } else if (ndlp->nlp_fc4_type == 0) { /* If we are only configured for FCP, the driver * should just issue PRLI for FCP. Otherwise issue * GFT_ID to determine if remote port supports NVME. */ if (vport->cfg_enable_fc4_type != LPFC_ENABLE_FCP) { lpfc_ns_cmd(vport, SLI_CTNS_GFT_ID, 0, ndlp->nlp_DID); return ndlp->nlp_state; } ndlp->nlp_fc4_type = NLP_FC4_FCP; } ndlp->nlp_prev_state = NLP_STE_REG_LOGIN_ISSUE; lpfc_nlp_set_state(vport, ndlp, NLP_STE_PRLI_ISSUE); lpfc_issue_els_prli(vport, ndlp, 0); } else { if ((vport->fc_flag & FC_PT2PT) && phba->nvmet_support) phba->targetport->port_id = vport->fc_myDID; /* Only Fabric ports should transition. NVME target * must complete PRLI. */ if (ndlp->nlp_type & NLP_FABRIC) { ndlp->nlp_prev_state = NLP_STE_REG_LOGIN_ISSUE; lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE); } } return ndlp->nlp_state; } static uint32_t lpfc_device_rm_reglogin_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, void *arg, uint32_t evt) { struct Scsi_Host *shost = lpfc_shost_from_vport(vport); if (ndlp->nlp_flag & NLP_NPR_2B_DISC) { spin_lock_irq(shost->host_lock); ndlp->nlp_flag |= NLP_NODEV_REMOVE; spin_unlock_irq(shost->host_lock); return ndlp->nlp_state; } else { lpfc_drop_node(vport, ndlp); return NLP_STE_FREED_NODE; } } static uint32_t lpfc_device_recov_reglogin_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, void *arg, uint32_t evt) { struct Scsi_Host *shost = lpfc_shost_from_vport(vport); /* Don't do anything that will mess up processing of the * previous RSCN. */ if (vport->fc_flag & FC_RSCN_DEFERRED) return ndlp->nlp_state; ndlp->nlp_prev_state = NLP_STE_REG_LOGIN_ISSUE; lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); spin_lock_irq(shost->host_lock); /* If we are a target we won't immediately transition into PRLI, * so if REG_LOGIN already completed we don't need to ignore it. */ if (!(ndlp->nlp_flag & NLP_RPI_REGISTERED) || !vport->phba->nvmet_support) ndlp->nlp_flag |= NLP_IGNR_REG_CMPL; ndlp->nlp_flag &= ~(NLP_NODEV_REMOVE | NLP_NPR_2B_DISC); spin_unlock_irq(shost->host_lock); lpfc_disc_set_adisc(vport, ndlp); return ndlp->nlp_state; } static uint32_t lpfc_rcv_plogi_prli_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, void *arg, uint32_t evt) { struct lpfc_iocbq *cmdiocb; cmdiocb = (struct lpfc_iocbq *) arg; lpfc_rcv_plogi(vport, ndlp, cmdiocb); return ndlp->nlp_state; } static uint32_t lpfc_rcv_prli_prli_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, void *arg, uint32_t evt) { struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; if (!lpfc_rcv_prli_support_check(vport, ndlp, cmdiocb)) return ndlp->nlp_state; lpfc_els_rsp_prli_acc(vport, cmdiocb, ndlp); return ndlp->nlp_state; } static uint32_t lpfc_rcv_logo_prli_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, void *arg, uint32_t evt) { struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; /* Software abort outstanding PRLI before sending acc */ lpfc_els_abort(vport->phba, ndlp); lpfc_rcv_logo(vport, ndlp, cmdiocb, ELS_CMD_LOGO); return ndlp->nlp_state; } static uint32_t lpfc_rcv_padisc_prli_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, void *arg, uint32_t evt) { struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; lpfc_rcv_padisc(vport, ndlp, cmdiocb); return ndlp->nlp_state; } /* This routine is envoked when we rcv a PRLO request from a nport * we are logged into. We should send back a PRLO rsp setting the * appropriate bits. * NEXT STATE = PRLI_ISSUE */ static uint32_t lpfc_rcv_prlo_prli_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, void *arg, uint32_t evt) { struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; lpfc_els_rsp_acc(vport, ELS_CMD_PRLO, cmdiocb, ndlp, NULL); return ndlp->nlp_state; } static uint32_t lpfc_cmpl_prli_prli_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, void *arg, uint32_t evt) { struct Scsi_Host *shost = lpfc_shost_from_vport(vport); struct lpfc_iocbq *cmdiocb, *rspiocb; struct lpfc_hba *phba = vport->phba; IOCB_t *irsp; PRLI *npr; struct lpfc_nvme_prli *nvpr; void *temp_ptr; cmdiocb = (struct lpfc_iocbq *) arg; rspiocb = cmdiocb->context_un.rsp_iocb; /* A solicited PRLI is either FCP or NVME. The PRLI cmd/rsp * format is different so NULL the two PRLI types so that the * driver correctly gets the correct context. */ npr = NULL; nvpr = NULL; temp_ptr = lpfc_check_elscmpl_iocb(phba, cmdiocb, rspiocb); if (cmdiocb->iocb_flag & LPFC_PRLI_FCP_REQ) npr = (PRLI *) temp_ptr; else if (cmdiocb->iocb_flag & LPFC_PRLI_NVME_REQ) nvpr = (struct lpfc_nvme_prli *) temp_ptr; irsp = &rspiocb->iocb; if (irsp->ulpStatus) { if ((vport->port_type == LPFC_NPIV_PORT) && vport->cfg_restrict_login) { goto out; } /* Adjust the nlp_type accordingly if the PRLI failed */ if (npr) ndlp->nlp_fc4_type &= ~NLP_FC4_FCP; if (nvpr) ndlp->nlp_fc4_type &= ~NLP_FC4_NVME; /* We can't set the DSM state till BOTH PRLIs complete */ goto out_err; } if (npr && (npr->acceptRspCode == PRLI_REQ_EXECUTED) && (npr->prliType == PRLI_FCP_TYPE)) { lpfc_printf_vlog(vport, KERN_INFO, LOG_NVME_DISC, "6028 FCP NPR PRLI Cmpl Init %d Target %d\n", npr->initiatorFunc, npr->targetFunc); if (npr->initiatorFunc) ndlp->nlp_type |= NLP_FCP_INITIATOR; if (npr->targetFunc) { ndlp->nlp_type |= NLP_FCP_TARGET; if (npr->writeXferRdyDis) ndlp->nlp_flag |= NLP_FIRSTBURST; } if (npr->Retry) ndlp->nlp_fcp_info |= NLP_FCP_2_DEVICE; } else if (nvpr && (bf_get_be32(prli_acc_rsp_code, nvpr) == PRLI_REQ_EXECUTED) && (bf_get_be32(prli_type_code, nvpr) == PRLI_NVME_TYPE)) { /* Complete setting up the remote ndlp personality. */ if (bf_get_be32(prli_init, nvpr)) ndlp->nlp_type |= NLP_NVME_INITIATOR; /* Target driver cannot solicit NVME FB. */ if (bf_get_be32(prli_tgt, nvpr)) { /* Complete the nvme target roles. The transport * needs to know if the rport is capable of * discovery in addition to its role. */ ndlp->nlp_type |= NLP_NVME_TARGET; if (bf_get_be32(prli_disc, nvpr)) ndlp->nlp_type |= NLP_NVME_DISCOVERY; /* * If prli_fba is set, the Target supports FirstBurst. * If prli_fb_sz is 0, the FirstBurst size is unlimited, * otherwise it defines the actual size supported by * the NVME Target. */ if ((bf_get_be32(prli_fba, nvpr) == 1) && (phba->cfg_nvme_enable_fb) && (!phba->nvmet_support)) { /* Both sides support FB. The target's first * burst size is a 512 byte encoded value. */ ndlp->nlp_flag |= NLP_FIRSTBURST; ndlp->nvme_fb_size = bf_get_be32(prli_fb_sz, nvpr); /* Expressed in units of 512 bytes */ if (ndlp->nvme_fb_size) ndlp->nvme_fb_size <<= LPFC_NVME_FB_SHIFT; else ndlp->nvme_fb_size = LPFC_NVME_MAX_FB; } } lpfc_printf_vlog(vport, KERN_INFO, LOG_NVME_DISC, "6029 NVME PRLI Cmpl w1 x%08x " "w4 x%08x w5 x%08x flag x%x, " "fcp_info x%x nlp_type x%x\n", be32_to_cpu(nvpr->word1), be32_to_cpu(nvpr->word4), be32_to_cpu(nvpr->word5), ndlp->nlp_flag, ndlp->nlp_fcp_info, ndlp->nlp_type); } if (!(ndlp->nlp_type & NLP_FCP_TARGET) && (vport->port_type == LPFC_NPIV_PORT) && vport->cfg_restrict_login) { out: spin_lock_irq(shost->host_lock); ndlp->nlp_flag |= NLP_TARGET_REMOVE; spin_unlock_irq(shost->host_lock); lpfc_issue_els_logo(vport, ndlp, 0); ndlp->nlp_prev_state = NLP_STE_PRLI_ISSUE; lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); return ndlp->nlp_state; } out_err: /* The ndlp state cannot move to MAPPED or UNMAPPED before all PRLIs * are complete. */ if (ndlp->fc4_prli_sent == 0) { ndlp->nlp_prev_state = NLP_STE_PRLI_ISSUE; if (ndlp->nlp_type & (NLP_FCP_TARGET | NLP_NVME_TARGET)) lpfc_nlp_set_state(vport, ndlp, NLP_STE_MAPPED_NODE); else if (ndlp->nlp_type & (NLP_FCP_INITIATOR | NLP_NVME_INITIATOR)) lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE); } else lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, "3067 PRLI's still outstanding " "on x%06x - count %d, Pend Node Mode " "transition...\n", ndlp->nlp_DID, ndlp->fc4_prli_sent); return ndlp->nlp_state; } /*! lpfc_device_rm_prli_issue * * \pre * \post * \param phba * \param ndlp * \param arg * \param evt * \return uint32_t * * \b Description: * This routine is envoked when we a request to remove a nport we are in the * process of PRLIing. We should software abort outstanding prli, unreg * login, send a logout. We will change node state to UNUSED_NODE, put it * on plogi list so it can be freed when LOGO completes. * */ static uint32_t lpfc_device_rm_prli_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, void *arg, uint32_t evt) { struct Scsi_Host *shost = lpfc_shost_from_vport(vport); if (ndlp->nlp_flag & NLP_NPR_2B_DISC) { spin_lock_irq(shost->host_lock); ndlp->nlp_flag |= NLP_NODEV_REMOVE; spin_unlock_irq(shost->host_lock); return ndlp->nlp_state; } else { /* software abort outstanding PLOGI */ lpfc_els_abort(vport->phba, ndlp); lpfc_drop_node(vport, ndlp); return NLP_STE_FREED_NODE; } } /*! lpfc_device_recov_prli_issue * * \pre * \post * \param phba * \param ndlp * \param arg * \param evt * \return uint32_t * * \b Description: * The routine is envoked when the state of a device is unknown, like * during a link down. We should remove the nodelist entry from the * unmapped list, issue a UNREG_LOGIN, do a software abort of the * outstanding PRLI command, then free the node entry. */ static uint32_t lpfc_device_recov_prli_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, void *arg, uint32_t evt) { struct Scsi_Host *shost = lpfc_shost_from_vport(vport); struct lpfc_hba *phba = vport->phba; /* Don't do anything that will mess up processing of the * previous RSCN. */ if (vport->fc_flag & FC_RSCN_DEFERRED) return ndlp->nlp_state; /* software abort outstanding PRLI */ lpfc_els_abort(phba, ndlp); ndlp->nlp_prev_state = NLP_STE_PRLI_ISSUE; lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); spin_lock_irq(shost->host_lock); ndlp->nlp_flag &= ~(NLP_NODEV_REMOVE | NLP_NPR_2B_DISC); spin_unlock_irq(shost->host_lock); lpfc_disc_set_adisc(vport, ndlp); return ndlp->nlp_state; } static uint32_t lpfc_rcv_plogi_logo_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, void *arg, uint32_t evt) { struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *)arg; struct ls_rjt stat; memset(&stat, 0, sizeof(struct ls_rjt)); stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC; stat.un.b.lsRjtRsnCodeExp = LSEXP_NOTHING_MORE; lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, NULL); return ndlp->nlp_state; } static uint32_t lpfc_rcv_prli_logo_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, void *arg, uint32_t evt) { struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *)arg; struct ls_rjt stat; memset(&stat, 0, sizeof(struct ls_rjt)); stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC; stat.un.b.lsRjtRsnCodeExp = LSEXP_NOTHING_MORE; lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, NULL); return ndlp->nlp_state; } static uint32_t lpfc_rcv_logo_logo_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, void *arg, uint32_t evt) { struct Scsi_Host *shost = lpfc_shost_from_vport(vport); struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *)arg; spin_lock_irq(shost->host_lock); ndlp->nlp_flag |= NLP_LOGO_ACC; spin_unlock_irq(shost->host_lock); lpfc_els_rsp_acc(vport, ELS_CMD_ACC, cmdiocb, ndlp, NULL); return ndlp->nlp_state; } static uint32_t lpfc_rcv_padisc_logo_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, void *arg, uint32_t evt) { struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *)arg; struct ls_rjt stat; memset(&stat, 0, sizeof(struct ls_rjt)); stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC; stat.un.b.lsRjtRsnCodeExp = LSEXP_NOTHING_MORE; lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, NULL); return ndlp->nlp_state; } static uint32_t lpfc_rcv_prlo_logo_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, void *arg, uint32_t evt) { struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *)arg; struct ls_rjt stat; memset(&stat, 0, sizeof(struct ls_rjt)); stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC; stat.un.b.lsRjtRsnCodeExp = LSEXP_NOTHING_MORE; lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, NULL); return ndlp->nlp_state; } static uint32_t lpfc_cmpl_logo_logo_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, void *arg, uint32_t evt) { struct Scsi_Host *shost = lpfc_shost_from_vport(vport); ndlp->nlp_prev_state = NLP_STE_LOGO_ISSUE; lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); spin_lock_irq(shost->host_lock); ndlp->nlp_flag &= ~(NLP_NODEV_REMOVE | NLP_NPR_2B_DISC); spin_unlock_irq(shost->host_lock); lpfc_disc_set_adisc(vport, ndlp); return ndlp->nlp_state; } static uint32_t lpfc_device_rm_logo_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, void *arg, uint32_t evt) { /* * DevLoss has timed out and is calling for Device Remove. * In this case, abort the LOGO and cleanup the ndlp */ lpfc_unreg_rpi(vport, ndlp); /* software abort outstanding PLOGI */ lpfc_els_abort(vport->phba, ndlp); lpfc_drop_node(vport, ndlp); return NLP_STE_FREED_NODE; } static uint32_t lpfc_device_recov_logo_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, void *arg, uint32_t evt) { /* * Device Recovery events have no meaning for a node with a LOGO * outstanding. The LOGO has to complete first and handle the * node from that point. */ return ndlp->nlp_state; } static uint32_t lpfc_rcv_plogi_unmap_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, void *arg, uint32_t evt) { struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; lpfc_rcv_plogi(vport, ndlp, cmdiocb); return ndlp->nlp_state; } static uint32_t lpfc_rcv_prli_unmap_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, void *arg, uint32_t evt) { struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; if (!lpfc_rcv_prli_support_check(vport, ndlp, cmdiocb)) return ndlp->nlp_state; lpfc_rcv_prli(vport, ndlp, cmdiocb); lpfc_els_rsp_prli_acc(vport, cmdiocb, ndlp); return ndlp->nlp_state; } static uint32_t lpfc_rcv_logo_unmap_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, void *arg, uint32_t evt) { struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; lpfc_rcv_logo(vport, ndlp, cmdiocb, ELS_CMD_LOGO); return ndlp->nlp_state; } static uint32_t lpfc_rcv_padisc_unmap_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, void *arg, uint32_t evt) { struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; lpfc_rcv_padisc(vport, ndlp, cmdiocb); return ndlp->nlp_state; } static uint32_t lpfc_rcv_prlo_unmap_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, void *arg, uint32_t evt) { struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; lpfc_els_rsp_acc(vport, ELS_CMD_PRLO, cmdiocb, ndlp, NULL); return ndlp->nlp_state; } static uint32_t lpfc_device_recov_unmap_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, void *arg, uint32_t evt) { struct Scsi_Host *shost = lpfc_shost_from_vport(vport); ndlp->nlp_prev_state = NLP_STE_UNMAPPED_NODE; lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); spin_lock_irq(shost->host_lock); ndlp->nlp_flag &= ~(NLP_NODEV_REMOVE | NLP_NPR_2B_DISC); ndlp->nlp_fc4_type &= ~(NLP_FC4_FCP | NLP_FC4_NVME); spin_unlock_irq(shost->host_lock); lpfc_disc_set_adisc(vport, ndlp); return ndlp->nlp_state; } static uint32_t lpfc_rcv_plogi_mapped_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, void *arg, uint32_t evt) { struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; lpfc_rcv_plogi(vport, ndlp, cmdiocb); return ndlp->nlp_state; } static uint32_t lpfc_rcv_prli_mapped_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, void *arg, uint32_t evt) { struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; if (!lpfc_rcv_prli_support_check(vport, ndlp, cmdiocb)) return ndlp->nlp_state; lpfc_els_rsp_prli_acc(vport, cmdiocb, ndlp); return ndlp->nlp_state; } static uint32_t lpfc_rcv_logo_mapped_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, void *arg, uint32_t evt) { struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; lpfc_rcv_logo(vport, ndlp, cmdiocb, ELS_CMD_LOGO); return ndlp->nlp_state; } static uint32_t lpfc_rcv_padisc_mapped_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, void *arg, uint32_t evt) { struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; lpfc_rcv_padisc(vport, ndlp, cmdiocb); return ndlp->nlp_state; } static uint32_t lpfc_rcv_prlo_mapped_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, void *arg, uint32_t evt) { struct lpfc_hba *phba = vport->phba; struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; /* flush the target */ lpfc_sli_abort_iocb(vport, &phba->sli.sli3_ring[LPFC_FCP_RING], ndlp->nlp_sid, 0, LPFC_CTX_TGT); /* Treat like rcv logo */ lpfc_rcv_logo(vport, ndlp, cmdiocb, ELS_CMD_PRLO); return ndlp->nlp_state; } static uint32_t lpfc_device_recov_mapped_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, void *arg, uint32_t evt) { struct Scsi_Host *shost = lpfc_shost_from_vport(vport); ndlp->nlp_prev_state = NLP_STE_MAPPED_NODE; lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); spin_lock_irq(shost->host_lock); ndlp->nlp_flag &= ~(NLP_NODEV_REMOVE | NLP_NPR_2B_DISC); ndlp->nlp_fc4_type &= ~(NLP_FC4_FCP | NLP_FC4_NVME); spin_unlock_irq(shost->host_lock); lpfc_disc_set_adisc(vport, ndlp); return ndlp->nlp_state; } static uint32_t lpfc_rcv_plogi_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, void *arg, uint32_t evt) { struct Scsi_Host *shost = lpfc_shost_from_vport(vport); struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; /* Ignore PLOGI if we have an outstanding LOGO */ if (ndlp->nlp_flag & (NLP_LOGO_SND | NLP_LOGO_ACC)) return ndlp->nlp_state; if (lpfc_rcv_plogi(vport, ndlp, cmdiocb)) { lpfc_cancel_retry_delay_tmo(vport, ndlp); spin_lock_irq(shost->host_lock); ndlp->nlp_flag &= ~(NLP_NPR_ADISC | NLP_NPR_2B_DISC); spin_unlock_irq(shost->host_lock); } else if (!(ndlp->nlp_flag & NLP_NPR_2B_DISC)) { /* send PLOGI immediately, move to PLOGI issue state */ if (!(ndlp->nlp_flag & NLP_DELAY_TMO)) { ndlp->nlp_prev_state = NLP_STE_NPR_NODE; lpfc_nlp_set_state(vport, ndlp, NLP_STE_PLOGI_ISSUE); lpfc_issue_els_plogi(vport, ndlp->nlp_DID, 0); } } return ndlp->nlp_state; } static uint32_t lpfc_rcv_prli_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, void *arg, uint32_t evt) { struct Scsi_Host *shost = lpfc_shost_from_vport(vport); struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; struct ls_rjt stat; memset(&stat, 0, sizeof (struct ls_rjt)); stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC; stat.un.b.lsRjtRsnCodeExp = LSEXP_NOTHING_MORE; lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, NULL); if (!(ndlp->nlp_flag & NLP_DELAY_TMO)) { if (ndlp->nlp_flag & NLP_NPR_ADISC) { spin_lock_irq(shost->host_lock); ndlp->nlp_flag &= ~NLP_NPR_ADISC; ndlp->nlp_prev_state = NLP_STE_NPR_NODE; spin_unlock_irq(shost->host_lock); lpfc_nlp_set_state(vport, ndlp, NLP_STE_ADISC_ISSUE); lpfc_issue_els_adisc(vport, ndlp, 0); } else { ndlp->nlp_prev_state = NLP_STE_NPR_NODE; lpfc_nlp_set_state(vport, ndlp, NLP_STE_PLOGI_ISSUE); lpfc_issue_els_plogi(vport, ndlp->nlp_DID, 0); } } return ndlp->nlp_state; } static uint32_t lpfc_rcv_logo_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, void *arg, uint32_t evt) { struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; lpfc_rcv_logo(vport, ndlp, cmdiocb, ELS_CMD_LOGO); return ndlp->nlp_state; } static uint32_t lpfc_rcv_padisc_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, void *arg, uint32_t evt) { struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; lpfc_rcv_padisc(vport, ndlp, cmdiocb); /* * Do not start discovery if discovery is about to start * or discovery in progress for this node. Starting discovery * here will affect the counting of discovery threads. */ if (!(ndlp->nlp_flag & NLP_DELAY_TMO) && !(ndlp->nlp_flag & NLP_NPR_2B_DISC)) { if (ndlp->nlp_flag & NLP_NPR_ADISC) { ndlp->nlp_flag &= ~NLP_NPR_ADISC; ndlp->nlp_prev_state = NLP_STE_NPR_NODE; lpfc_nlp_set_state(vport, ndlp, NLP_STE_ADISC_ISSUE); lpfc_issue_els_adisc(vport, ndlp, 0); } else { ndlp->nlp_prev_state = NLP_STE_NPR_NODE; lpfc_nlp_set_state(vport, ndlp, NLP_STE_PLOGI_ISSUE); lpfc_issue_els_plogi(vport, ndlp->nlp_DID, 0); } } return ndlp->nlp_state; } static uint32_t lpfc_rcv_prlo_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, void *arg, uint32_t evt) { struct Scsi_Host *shost = lpfc_shost_from_vport(vport); struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg; spin_lock_irq(shost->host_lock); ndlp->nlp_flag |= NLP_LOGO_ACC; spin_unlock_irq(shost->host_lock); lpfc_els_rsp_acc(vport, ELS_CMD_ACC, cmdiocb, ndlp, NULL); if ((ndlp->nlp_flag & NLP_DELAY_TMO) == 0) { mod_timer(&ndlp->nlp_delayfunc, jiffies + msecs_to_jiffies(1000 * 1)); spin_lock_irq(shost->host_lock); ndlp->nlp_flag |= NLP_DELAY_TMO; ndlp->nlp_flag &= ~NLP_NPR_ADISC; spin_unlock_irq(shost->host_lock); ndlp->nlp_last_elscmd = ELS_CMD_PLOGI; } else { spin_lock_irq(shost->host_lock); ndlp->nlp_flag &= ~NLP_NPR_ADISC; spin_unlock_irq(shost->host_lock); } return ndlp->nlp_state; } static uint32_t lpfc_cmpl_plogi_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, void *arg, uint32_t evt) { struct lpfc_iocbq *cmdiocb, *rspiocb; IOCB_t *irsp; struct Scsi_Host *shost = lpfc_shost_from_vport(vport); cmdiocb = (struct lpfc_iocbq *) arg; rspiocb = cmdiocb->context_un.rsp_iocb; irsp = &rspiocb->iocb; if (irsp->ulpStatus) { spin_lock_irq(shost->host_lock); ndlp->nlp_flag |= NLP_DEFER_RM; spin_unlock_irq(shost->host_lock); return NLP_STE_FREED_NODE; } return ndlp->nlp_state; } static uint32_t lpfc_cmpl_prli_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, void *arg, uint32_t evt) { struct lpfc_iocbq *cmdiocb, *rspiocb; IOCB_t *irsp; cmdiocb = (struct lpfc_iocbq *) arg; rspiocb = cmdiocb->context_un.rsp_iocb; irsp = &rspiocb->iocb; if (irsp->ulpStatus && (ndlp->nlp_flag & NLP_NODEV_REMOVE)) { lpfc_drop_node(vport, ndlp); return NLP_STE_FREED_NODE; } return ndlp->nlp_state; } static uint32_t lpfc_cmpl_logo_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, void *arg, uint32_t evt) { struct Scsi_Host *shost = lpfc_shost_from_vport(vport); /* For the fabric port just clear the fc flags. */ if (ndlp->nlp_DID == Fabric_DID) { spin_lock_irq(shost->host_lock); vport->fc_flag &= ~(FC_FABRIC | FC_PUBLIC_LOOP); spin_unlock_irq(shost->host_lock); } lpfc_unreg_rpi(vport, ndlp); return ndlp->nlp_state; } static uint32_t lpfc_cmpl_adisc_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, void *arg, uint32_t evt) { struct lpfc_iocbq *cmdiocb, *rspiocb; IOCB_t *irsp; cmdiocb = (struct lpfc_iocbq *) arg; rspiocb = cmdiocb->context_un.rsp_iocb; irsp = &rspiocb->iocb; if (irsp->ulpStatus && (ndlp->nlp_flag & NLP_NODEV_REMOVE)) { lpfc_drop_node(vport, ndlp); return NLP_STE_FREED_NODE; } return ndlp->nlp_state; } static uint32_t lpfc_cmpl_reglogin_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, void *arg, uint32_t evt) { LPFC_MBOXQ_t *pmb = (LPFC_MBOXQ_t *) arg; MAILBOX_t *mb = &pmb->u.mb; if (!mb->mbxStatus) { /* SLI4 ports have preallocated logical rpis. */ if (vport->phba->sli_rev < LPFC_SLI_REV4) ndlp->nlp_rpi = mb->un.varWords[0]; ndlp->nlp_flag |= NLP_RPI_REGISTERED; if (ndlp->nlp_flag & NLP_LOGO_ACC) { lpfc_unreg_rpi(vport, ndlp); } } else { if (ndlp->nlp_flag & NLP_NODEV_REMOVE) { lpfc_drop_node(vport, ndlp); return NLP_STE_FREED_NODE; } } return ndlp->nlp_state; } static uint32_t lpfc_device_rm_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, void *arg, uint32_t evt) { struct Scsi_Host *shost = lpfc_shost_from_vport(vport); if (ndlp->nlp_flag & NLP_NPR_2B_DISC) { spin_lock_irq(shost->host_lock); ndlp->nlp_flag |= NLP_NODEV_REMOVE; spin_unlock_irq(shost->host_lock); return ndlp->nlp_state; } lpfc_drop_node(vport, ndlp); return NLP_STE_FREED_NODE; } static uint32_t lpfc_device_recov_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, void *arg, uint32_t evt) { struct Scsi_Host *shost = lpfc_shost_from_vport(vport); /* Don't do anything that will mess up processing of the * previous RSCN. */ if (vport->fc_flag & FC_RSCN_DEFERRED) return ndlp->nlp_state; lpfc_cancel_retry_delay_tmo(vport, ndlp); spin_lock_irq(shost->host_lock); ndlp->nlp_flag &= ~(NLP_NODEV_REMOVE | NLP_NPR_2B_DISC); ndlp->nlp_fc4_type &= ~(NLP_FC4_FCP | NLP_FC4_NVME); spin_unlock_irq(shost->host_lock); return ndlp->nlp_state; } /* This next section defines the NPort Discovery State Machine */ /* There are 4 different double linked lists nodelist entries can reside on. * The plogi list and adisc list are used when Link Up discovery or RSCN * processing is needed. Each list holds the nodes that we will send PLOGI * or ADISC on. These lists will keep track of what nodes will be effected * by an RSCN, or a Link Up (Typically, all nodes are effected on Link Up). * The unmapped_list will contain all nodes that we have successfully logged * into at the Fibre Channel level. The mapped_list will contain all nodes * that are mapped FCP targets. */ /* * The bind list is a list of undiscovered (potentially non-existent) nodes * that we have saved binding information on. This information is used when * nodes transition from the unmapped to the mapped list. */ /* For UNUSED_NODE state, the node has just been allocated . * For PLOGI_ISSUE and REG_LOGIN_ISSUE, the node is on * the PLOGI list. For REG_LOGIN_COMPL, the node is taken off the PLOGI list * and put on the unmapped list. For ADISC processing, the node is taken off * the ADISC list and placed on either the mapped or unmapped list (depending * on its previous state). Once on the unmapped list, a PRLI is issued and the * state changed to PRLI_ISSUE. When the PRLI completion occurs, the state is * changed to UNMAPPED_NODE. If the completion indicates a mapped * node, the node is taken off the unmapped list. The binding list is checked * for a valid binding, or a binding is automatically assigned. If binding * assignment is unsuccessful, the node is left on the unmapped list. If * binding assignment is successful, the associated binding list entry (if * any) is removed, and the node is placed on the mapped list. */ /* * For a Link Down, all nodes on the ADISC, PLOGI, unmapped or mapped * lists will receive a DEVICE_RECOVERY event. If the linkdown or devloss timers * expire, all effected nodes will receive a DEVICE_RM event. */ /* * For a Link Up or RSCN, all nodes will move from the mapped / unmapped lists * to either the ADISC or PLOGI list. After a Nameserver query or ALPA loopmap * check, additional nodes may be added or removed (via DEVICE_RM) to / from * the PLOGI or ADISC lists. Once the PLOGI and ADISC lists are populated, * we will first process the ADISC list. 32 entries are processed initially and * ADISC is initited for each one. Completions / Events for each node are * funnelled thru the state machine. As each node finishes ADISC processing, it * starts ADISC for any nodes waiting for ADISC processing. If no nodes are * waiting, and the ADISC list count is identically 0, then we are done. For * Link Up discovery, since all nodes on the PLOGI list are UNREG_LOGIN'ed, we * can issue a CLEAR_LA and reenable Link Events. Next we will process the PLOGI * list. 32 entries are processed initially and PLOGI is initited for each one. * Completions / Events for each node are funnelled thru the state machine. As * each node finishes PLOGI processing, it starts PLOGI for any nodes waiting * for PLOGI processing. If no nodes are waiting, and the PLOGI list count is * indentically 0, then we are done. We have now completed discovery / RSCN * handling. Upon completion, ALL nodes should be on either the mapped or * unmapped lists. */ static uint32_t (*lpfc_disc_action[NLP_STE_MAX_STATE * NLP_EVT_MAX_EVENT]) (struct lpfc_vport *, struct lpfc_nodelist *, void *, uint32_t) = { /* Action routine Event Current State */ lpfc_rcv_plogi_unused_node, /* RCV_PLOGI UNUSED_NODE */ lpfc_rcv_els_unused_node, /* RCV_PRLI */ lpfc_rcv_logo_unused_node, /* RCV_LOGO */ lpfc_rcv_els_unused_node, /* RCV_ADISC */ lpfc_rcv_els_unused_node, /* RCV_PDISC */ lpfc_rcv_els_unused_node, /* RCV_PRLO */ lpfc_disc_illegal, /* CMPL_PLOGI */ lpfc_disc_illegal, /* CMPL_PRLI */ lpfc_cmpl_logo_unused_node, /* CMPL_LOGO */ lpfc_disc_illegal, /* CMPL_ADISC */ lpfc_disc_illegal, /* CMPL_REG_LOGIN */ lpfc_device_rm_unused_node, /* DEVICE_RM */ lpfc_device_recov_unused_node, /* DEVICE_RECOVERY */ lpfc_rcv_plogi_plogi_issue, /* RCV_PLOGI PLOGI_ISSUE */ lpfc_rcv_prli_plogi_issue, /* RCV_PRLI */ lpfc_rcv_logo_plogi_issue, /* RCV_LOGO */ lpfc_rcv_els_plogi_issue, /* RCV_ADISC */ lpfc_rcv_els_plogi_issue, /* RCV_PDISC */ lpfc_rcv_els_plogi_issue, /* RCV_PRLO */ lpfc_cmpl_plogi_plogi_issue, /* CMPL_PLOGI */ lpfc_disc_illegal, /* CMPL_PRLI */ lpfc_cmpl_logo_plogi_issue, /* CMPL_LOGO */ lpfc_disc_illegal, /* CMPL_ADISC */ lpfc_cmpl_reglogin_plogi_issue,/* CMPL_REG_LOGIN */ lpfc_device_rm_plogi_issue, /* DEVICE_RM */ lpfc_device_recov_plogi_issue, /* DEVICE_RECOVERY */ lpfc_rcv_plogi_adisc_issue, /* RCV_PLOGI ADISC_ISSUE */ lpfc_rcv_prli_adisc_issue, /* RCV_PRLI */ lpfc_rcv_logo_adisc_issue, /* RCV_LOGO */ lpfc_rcv_padisc_adisc_issue, /* RCV_ADISC */ lpfc_rcv_padisc_adisc_issue, /* RCV_PDISC */ lpfc_rcv_prlo_adisc_issue, /* RCV_PRLO */ lpfc_disc_illegal, /* CMPL_PLOGI */ lpfc_disc_illegal, /* CMPL_PRLI */ lpfc_disc_illegal, /* CMPL_LOGO */ lpfc_cmpl_adisc_adisc_issue, /* CMPL_ADISC */ lpfc_disc_illegal, /* CMPL_REG_LOGIN */ lpfc_device_rm_adisc_issue, /* DEVICE_RM */ lpfc_device_recov_adisc_issue, /* DEVICE_RECOVERY */ lpfc_rcv_plogi_reglogin_issue, /* RCV_PLOGI REG_LOGIN_ISSUE */ lpfc_rcv_prli_reglogin_issue, /* RCV_PLOGI */ lpfc_rcv_logo_reglogin_issue, /* RCV_LOGO */ lpfc_rcv_padisc_reglogin_issue, /* RCV_ADISC */ lpfc_rcv_padisc_reglogin_issue, /* RCV_PDISC */ lpfc_rcv_prlo_reglogin_issue, /* RCV_PRLO */ lpfc_cmpl_plogi_illegal, /* CMPL_PLOGI */ lpfc_disc_illegal, /* CMPL_PRLI */ lpfc_disc_illegal, /* CMPL_LOGO */ lpfc_disc_illegal, /* CMPL_ADISC */ lpfc_cmpl_reglogin_reglogin_issue,/* CMPL_REG_LOGIN */ lpfc_device_rm_reglogin_issue, /* DEVICE_RM */ lpfc_device_recov_reglogin_issue,/* DEVICE_RECOVERY */ lpfc_rcv_plogi_prli_issue, /* RCV_PLOGI PRLI_ISSUE */ lpfc_rcv_prli_prli_issue, /* RCV_PRLI */ lpfc_rcv_logo_prli_issue, /* RCV_LOGO */ lpfc_rcv_padisc_prli_issue, /* RCV_ADISC */ lpfc_rcv_padisc_prli_issue, /* RCV_PDISC */ lpfc_rcv_prlo_prli_issue, /* RCV_PRLO */ lpfc_cmpl_plogi_illegal, /* CMPL_PLOGI */ lpfc_cmpl_prli_prli_issue, /* CMPL_PRLI */ lpfc_disc_illegal, /* CMPL_LOGO */ lpfc_disc_illegal, /* CMPL_ADISC */ lpfc_disc_illegal, /* CMPL_REG_LOGIN */ lpfc_device_rm_prli_issue, /* DEVICE_RM */ lpfc_device_recov_prli_issue, /* DEVICE_RECOVERY */ lpfc_rcv_plogi_logo_issue, /* RCV_PLOGI LOGO_ISSUE */ lpfc_rcv_prli_logo_issue, /* RCV_PRLI */ lpfc_rcv_logo_logo_issue, /* RCV_LOGO */ lpfc_rcv_padisc_logo_issue, /* RCV_ADISC */ lpfc_rcv_padisc_logo_issue, /* RCV_PDISC */ lpfc_rcv_prlo_logo_issue, /* RCV_PRLO */ lpfc_cmpl_plogi_illegal, /* CMPL_PLOGI */ lpfc_disc_illegal, /* CMPL_PRLI */ lpfc_cmpl_logo_logo_issue, /* CMPL_LOGO */ lpfc_disc_illegal, /* CMPL_ADISC */ lpfc_disc_illegal, /* CMPL_REG_LOGIN */ lpfc_device_rm_logo_issue, /* DEVICE_RM */ lpfc_device_recov_logo_issue, /* DEVICE_RECOVERY */ lpfc_rcv_plogi_unmap_node, /* RCV_PLOGI UNMAPPED_NODE */ lpfc_rcv_prli_unmap_node, /* RCV_PRLI */ lpfc_rcv_logo_unmap_node, /* RCV_LOGO */ lpfc_rcv_padisc_unmap_node, /* RCV_ADISC */ lpfc_rcv_padisc_unmap_node, /* RCV_PDISC */ lpfc_rcv_prlo_unmap_node, /* RCV_PRLO */ lpfc_disc_illegal, /* CMPL_PLOGI */ lpfc_disc_illegal, /* CMPL_PRLI */ lpfc_disc_illegal, /* CMPL_LOGO */ lpfc_disc_illegal, /* CMPL_ADISC */ lpfc_disc_illegal, /* CMPL_REG_LOGIN */ lpfc_disc_illegal, /* DEVICE_RM */ lpfc_device_recov_unmap_node, /* DEVICE_RECOVERY */ lpfc_rcv_plogi_mapped_node, /* RCV_PLOGI MAPPED_NODE */ lpfc_rcv_prli_mapped_node, /* RCV_PRLI */ lpfc_rcv_logo_mapped_node, /* RCV_LOGO */ lpfc_rcv_padisc_mapped_node, /* RCV_ADISC */ lpfc_rcv_padisc_mapped_node, /* RCV_PDISC */ lpfc_rcv_prlo_mapped_node, /* RCV_PRLO */ lpfc_disc_illegal, /* CMPL_PLOGI */ lpfc_disc_illegal, /* CMPL_PRLI */ lpfc_disc_illegal, /* CMPL_LOGO */ lpfc_disc_illegal, /* CMPL_ADISC */ lpfc_disc_illegal, /* CMPL_REG_LOGIN */ lpfc_disc_illegal, /* DEVICE_RM */ lpfc_device_recov_mapped_node, /* DEVICE_RECOVERY */ lpfc_rcv_plogi_npr_node, /* RCV_PLOGI NPR_NODE */ lpfc_rcv_prli_npr_node, /* RCV_PRLI */ lpfc_rcv_logo_npr_node, /* RCV_LOGO */ lpfc_rcv_padisc_npr_node, /* RCV_ADISC */ lpfc_rcv_padisc_npr_node, /* RCV_PDISC */ lpfc_rcv_prlo_npr_node, /* RCV_PRLO */ lpfc_cmpl_plogi_npr_node, /* CMPL_PLOGI */ lpfc_cmpl_prli_npr_node, /* CMPL_PRLI */ lpfc_cmpl_logo_npr_node, /* CMPL_LOGO */ lpfc_cmpl_adisc_npr_node, /* CMPL_ADISC */ lpfc_cmpl_reglogin_npr_node, /* CMPL_REG_LOGIN */ lpfc_device_rm_npr_node, /* DEVICE_RM */ lpfc_device_recov_npr_node, /* DEVICE_RECOVERY */ }; int lpfc_disc_state_machine(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, void *arg, uint32_t evt) { uint32_t cur_state, rc; uint32_t(*func) (struct lpfc_vport *, struct lpfc_nodelist *, void *, uint32_t); uint32_t got_ndlp = 0; if (lpfc_nlp_get(ndlp)) got_ndlp = 1; cur_state = ndlp->nlp_state; /* DSM in event <evt> on NPort <nlp_DID> in state <cur_state> */ lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, "0211 DSM in event x%x on NPort x%x in " "state %d rpi x%x Data: x%x x%x\n", evt, ndlp->nlp_DID, cur_state, ndlp->nlp_rpi, ndlp->nlp_flag, ndlp->nlp_fc4_type); lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_DSM, "DSM in: evt:%d ste:%d did:x%x", evt, cur_state, ndlp->nlp_DID); func = lpfc_disc_action[(cur_state * NLP_EVT_MAX_EVENT) + evt]; rc = (func) (vport, ndlp, arg, evt); /* DSM out state <rc> on NPort <nlp_DID> */ if (got_ndlp) { lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, "0212 DSM out state %d on NPort x%x " "rpi x%x Data: x%x\n", rc, ndlp->nlp_DID, ndlp->nlp_rpi, ndlp->nlp_flag); lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_DSM, "DSM out: ste:%d did:x%x flg:x%x", rc, ndlp->nlp_DID, ndlp->nlp_flag); /* Decrement the ndlp reference count held for this function */ lpfc_nlp_put(ndlp); } else { lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, "0213 DSM out state %d on NPort free\n", rc); lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_DSM, "DSM out: ste:%d did:x%x flg:x%x", rc, 0, 0); } return rc; }
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