| /******************************************************************* |
| * This file is part of the Emulex Linux Device Driver for * |
| * Fibre Channel Host Bus Adapters. * |
| * Copyright (C) 2004-2015 Emulex. All rights reserved. * |
| * EMULEX and SLI are trademarks of Emulex. * |
| * www.emulex.com * |
| * Portions Copyright (C) 2004-2005 Christoph Hellwig * |
| * * |
| * This program is free software; you can redistribute it and/or * |
| * modify it under the terms of version 2 of the GNU General * |
| * Public License as published by the Free Software Foundation. * |
| * This program is distributed in the hope that it will be useful. * |
| * ALL EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND * |
| * WARRANTIES, INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY, * |
| * FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT, ARE * |
| * DISCLAIMED, EXCEPT TO THE EXTENT THAT SUCH DISCLAIMERS ARE HELD * |
| * TO BE LEGALLY INVALID. See the GNU General Public License for * |
| * more details, a copy of which can be found in the file COPYING * |
| * included with this package. * |
| *******************************************************************/ |
| |
| #include <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 "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_scsi.h" |
| #include "lpfc.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". |
| */ |
| int |
| lpfc_els_abort(struct lpfc_hba *phba, struct lpfc_nodelist *ndlp) |
| { |
| LIST_HEAD(abort_list); |
| struct lpfc_sli *psli = &phba->sli; |
| struct lpfc_sli_ring *pring = &psli->ring[LPFC_ELS_RING]; |
| struct lpfc_iocbq *iocb, *next_iocb; |
| |
| /* 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); |
| return 0; |
| } |
| |
| 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; |
| LPFC_MBOXQ_t *mbox; |
| struct ls_rjt stat; |
| int rc; |
| |
| memset(&stat, 0, sizeof (struct ls_rjt)); |
| if (vport->port_state <= LPFC_FDISC) { |
| /* Before responding to PLOGI, check for pt2pt mode. |
| * If we are pt2pt, with an outstanding FLOGI, abort |
| * the FLOGI and resend it first. |
| */ |
| if (vport->fc_flag & FC_PT2PT) { |
| lpfc_els_abort_flogi(phba); |
| if (!(vport->fc_flag & FC_PT2PT_PLOGI)) { |
| /* If the other side is supposed to initiate |
| * the PLOGI anyway, just ACC it now and |
| * move on with discovery. |
| */ |
| phba->fc_edtov = FF_DEF_EDTOV; |
| phba->fc_ratov = FF_DEF_RATOV; |
| /* Start discovery - this should just do |
| CLEAR_LA */ |
| lpfc_disc_start(vport); |
| } else |
| lpfc_initial_flogi(vport); |
| } else { |
| 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 0; |
| } |
| } |
| 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; |
| case NLP_STE_REG_LOGIN_ISSUE: |
| case NLP_STE_PRLI_ISSUE: |
| case NLP_STE_UNMAPPED_NODE: |
| case NLP_STE_MAPPED_NODE: |
| /* lpfc_plogi_confirm_nport skips fabric did, handle it here */ |
| if (!(ndlp->nlp_type & NLP_FABRIC)) { |
| 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; |
| } |
| |
| /* 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; |
| 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; |
| } |
| /* |
| * For SLI4, the VFI/VPI are registered AFTER the |
| * Nport with the higher WWPN sends us a PLOGI with |
| * our assigned NPortId. |
| */ |
| if (phba->sli_rev == LPFC_SLI_REV4) |
| lpfc_issue_reg_vfi(vport); |
| |
| lpfc_can_disctmo(vport); |
| } |
| 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->context2 = 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->context1; |
| ndlp = (struct lpfc_nodelist *) mboxq->context2; |
| 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); |
| } |
| |
| if (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 void |
| lpfc_rcv_prli(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, |
| struct lpfc_iocbq *cmdiocb) |
| { |
| 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)); |
| |
| ndlp->nlp_type &= ~(NLP_FCP_TARGET | NLP_FCP_INITIATOR); |
| ndlp->nlp_fcp_info &= ~NLP_FCP_2_DEVICE; |
| ndlp->nlp_flag &= ~NLP_FIRSTBURST; |
| if (npr->prliType == PRLI_FCP_TYPE) { |
| 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; |
| } |
| 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); |
| |
| 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)) { |
| ndlp->nlp_flag &= ~NLP_NPR_ADISC; |
| 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; |
| } |
| } |
| ndlp->nlp_flag &= ~NLP_NPR_ADISC; |
| 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. |
| **/ |
| void |
| lpfc_release_rpi(struct lpfc_hba *phba, |
| struct lpfc_vport *vport, |
| uint16_t rpi) |
| { |
| LPFC_MBOXQ_t *pmb; |
| int rc; |
| |
| 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; |
| 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; |
| MAILBOX_t *mb; |
| 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)) { |
| mb = &pmb->u.mb; |
| rpi = pmb->u.mb.un.varWords[0]; |
| lpfc_release_rpi(phba, vport, 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; |
| |
| /* 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; |
| IOCB_t *irsp; |
| struct serv_parm *sp; |
| LPFC_MBOXQ_t *mbox; |
| |
| 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; |
| |
| mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); |
| if (!mbox) { |
| lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS, |
| "0133 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; |
| } |
| |
| lpfc_unreg_rpi(vport, ndlp); |
| |
| 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->context2 = 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->context1; |
| 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, 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; |
| |
| 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; |
| |
| 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->context2)) { |
| lpfc_nlp_put(ndlp); |
| mb->context2 = 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->context2)) { |
| mp = (struct lpfc_dmabuf *) (mb->context1); |
| if (mp) { |
| __lpfc_mbuf_free(phba, mp->virt, mp->phys); |
| kfree(mp); |
| } |
| 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); |
| 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 (vport->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 */ |
| if (!(ndlp->nlp_type & NLP_FABRIC)) { |
| 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 { |
| 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); |
| 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; |
| |
| 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; |
| |
| cmdiocb = (struct lpfc_iocbq *) arg; |
| rspiocb = cmdiocb->context_un.rsp_iocb; |
| npr = (PRLI *)lpfc_check_elscmpl_iocb(phba, cmdiocb, rspiocb); |
| |
| irsp = &rspiocb->iocb; |
| if (irsp->ulpStatus) { |
| if ((vport->port_type == LPFC_NPIV_PORT) && |
| vport->cfg_restrict_login) { |
| goto out; |
| } |
| ndlp->nlp_prev_state = NLP_STE_PRLI_ISSUE; |
| lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE); |
| return ndlp->nlp_state; |
| } |
| |
| /* Check out PRLI rsp */ |
| ndlp->nlp_type &= ~(NLP_FCP_TARGET | NLP_FCP_INITIATOR); |
| ndlp->nlp_fcp_info &= ~NLP_FCP_2_DEVICE; |
| ndlp->nlp_flag &= ~NLP_FIRSTBURST; |
| if ((npr->acceptRspCode == PRLI_REQ_EXECUTED) && |
| (npr->prliType == PRLI_FCP_TYPE)) { |
| 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; |
| } |
| 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; |
| } |
| |
| ndlp->nlp_prev_state = NLP_STE_PRLI_ISSUE; |
| 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 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) |
| { |
| /* |
| * Take no action. If a LOGO is outstanding, then possibly DevLoss has |
| * timed out and is calling for Device Remove. In this case, the LOGO |
| * must be allowed to complete in state LOGO_ISSUE so that the rpi |
| * and other NLP flags are correctly cleaned up. |
| */ |
| return ndlp->nlp_state; |
| } |
| |
| 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; |
| |
| 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); |
| 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; |
| |
| 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.ring[phba->sli.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); |
| 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; |
| } 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); |
| 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 Data: x%x\n", |
| evt, ndlp->nlp_DID, cur_state, ndlp->nlp_flag); |
| |
| 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 Data: x%x\n", |
| rc, ndlp->nlp_DID, 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; |
| } |