/******************************************************************* * This file is part of the Emulex Linux Device Driver for * * Fibre Channel Host Bus Adapters. * * Copyright (C) 2004-2005 Emulex. All rights reserved. * * EMULEX and SLI are trademarks of Emulex. * * www.emulex.com * * Portions Copyright (C) 2004-2005 Christoph Hellwig * * * * This program is free software; you can redistribute it and/or * * modify it under the terms of version 2 of the GNU General * * Public License as published by the Free Software Foundation. * * This program is distributed in the hope that it will be useful. * * ALL EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND * * WARRANTIES, INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY, * * FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT, ARE * * DISCLAIMED, EXCEPT TO THE EXTENT THAT SUCH DISCLAIMERS ARE HELD * * TO BE LEGALLY INVALID. See the GNU General Public License for * * more details, a copy of which can be found in the file COPYING * * included with this package. * *******************************************************************/ #include #include #include #include #include #include #include #include "lpfc_hw.h" #include "lpfc_sli.h" #include "lpfc_disc.h" #include "lpfc_scsi.h" #include "lpfc.h" #include "lpfc_logmsg.h" #include "lpfc_crtn.h" /* Called to verify a rcv'ed ADISC was intended for us. */ static int lpfc_check_adisc(struct lpfc_hba * phba, struct lpfc_nodelist * ndlp, struct lpfc_name * nn, struct lpfc_name * pn) { /* 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)) != 0) return (0); if (memcmp(pn, &ndlp->nlp_portname, sizeof (struct lpfc_name)) != 0) return (0); /* we match, return success */ return (1); } int lpfc_check_sparm(struct lpfc_hba * phba, struct lpfc_nodelist * ndlp, struct serv_parm * sp, uint32_t class) { volatile struct serv_parm *hsp = &phba->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) { hsp_value = (hsp->cls1.rcvDataSizeMsb << 8) | hsp->cls1.rcvDataSizeLsb; ssp_value = (sp->cls1.rcvDataSizeMsb << 8) | sp->cls1.rcvDataSizeLsb; if (ssp_value > hsp_value) { sp->cls1.rcvDataSizeLsb = hsp->cls1.rcvDataSizeLsb; sp->cls1.rcvDataSizeMsb = hsp->cls1.rcvDataSizeMsb; } } else if (class == CLASS1) { return 0; } if (sp->cls2.classValid) { hsp_value = (hsp->cls2.rcvDataSizeMsb << 8) | hsp->cls2.rcvDataSizeLsb; ssp_value = (sp->cls2.rcvDataSizeMsb << 8) | sp->cls2.rcvDataSizeLsb; if (ssp_value > hsp_value) { sp->cls2.rcvDataSizeLsb = hsp->cls2.rcvDataSizeLsb; sp->cls2.rcvDataSizeMsb = hsp->cls2.rcvDataSizeMsb; } } else if (class == CLASS2) { return 0; } if (sp->cls3.classValid) { hsp_value = (hsp->cls3.rcvDataSizeMsb << 8) | hsp->cls3.rcvDataSizeLsb; ssp_value = (sp->cls3.rcvDataSizeMsb << 8) | sp->cls3.rcvDataSizeLsb; if (ssp_value > hsp_value) { sp->cls3.rcvDataSizeLsb = hsp->cls3.rcvDataSizeLsb; sp->cls3.rcvDataSizeMsb = hsp->cls3.rcvDataSizeMsb; } } else if (class == CLASS3) { return 0; } /* * 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; } 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, int send_abts) { struct lpfc_sli *psli; struct lpfc_sli_ring *pring; struct lpfc_iocbq *iocb, *next_iocb; IOCB_t *icmd; int found = 0; /* Abort outstanding I/O on NPort */ lpfc_printf_log(phba, KERN_INFO, LOG_DISCOVERY, "%d:0201 Abort outstanding I/O on NPort x%x " "Data: x%x x%x x%x\n", phba->brd_no, ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_state, ndlp->nlp_rpi); psli = &phba->sli; pring = &psli->ring[LPFC_ELS_RING]; /* First check the txq */ do { found = 0; spin_lock_irq(phba->host->host_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))) { found = 1; /* It matches, so deque and call compl with an error */ list_del(&iocb->list); pring->txq_cnt--; if (iocb->iocb_cmpl) { icmd = &iocb->iocb; icmd->ulpStatus = IOSTAT_LOCAL_REJECT; icmd->un.ulpWord[4] = IOERR_SLI_ABORTED; spin_unlock_irq(phba->host->host_lock); (iocb->iocb_cmpl) (phba, iocb, iocb); spin_lock_irq(phba->host->host_lock); } else lpfc_sli_release_iocbq(phba, iocb); break; } } spin_unlock_irq(phba->host->host_lock); } while (found); /* Everything on txcmplq will be returned by firmware * with a no rpi / linkdown / abort error. For ring 0, * ELS discovery, we want to get rid of it right here. */ /* Next check the txcmplq */ do { found = 0; spin_lock_irq(phba->host->host_lock); list_for_each_entry_safe(iocb, next_iocb, &pring->txcmplq, list) { /* Check to see if iocb matches the nport we are looking for */ if ((lpfc_check_sli_ndlp (phba, pring, iocb, ndlp))) { found = 1; /* It matches, so deque and call compl with an error */ list_del(&iocb->list); pring->txcmplq_cnt--; icmd = &iocb->iocb; /* If the driver is completing an ELS * command early, flush it out of the firmware. */ if (send_abts && (icmd->ulpCommand == CMD_ELS_REQUEST64_CR) && (icmd->un.elsreq64.bdl.ulpIoTag32)) { lpfc_sli_issue_abort_iotag32(phba, pring, iocb); } if (iocb->iocb_cmpl) { icmd->ulpStatus = IOSTAT_LOCAL_REJECT; icmd->un.ulpWord[4] = IOERR_SLI_ABORTED; spin_unlock_irq(phba->host->host_lock); (iocb->iocb_cmpl) (phba, iocb, iocb); spin_lock_irq(phba->host->host_lock); } else lpfc_sli_release_iocbq(phba, iocb); break; } } spin_unlock_irq(phba->host->host_lock); } while(found); /* If we are delaying issuing an ELS command, cancel it */ if (ndlp->nlp_flag & NLP_DELAY_TMO) { ndlp->nlp_flag &= ~NLP_DELAY_TMO; del_timer_sync(&ndlp->nlp_delayfunc); if (!list_empty(&ndlp->els_retry_evt.evt_listp)) list_del_init(&ndlp->els_retry_evt.evt_listp); } return (0); } static int lpfc_rcv_plogi(struct lpfc_hba * phba, struct lpfc_nodelist * ndlp, struct lpfc_iocbq *cmdiocb) { struct lpfc_dmabuf *pcmd; 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 (phba->hba_state <= LPFC_FLOGI) { /* Before responding to PLOGI, check for pt2pt mode. * If we are pt2pt, with an outstanding FLOGI, abort * the FLOGI and resend it first. */ if (phba->fc_flag & FC_PT2PT) { lpfc_els_abort_flogi(phba); if (!(phba->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(phba); } else { lpfc_initial_flogi(phba); } } else { stat.un.b.lsRjtRsnCode = LSRJT_LOGICAL_BSY; stat.un.b.lsRjtRsnCodeExp = LSEXP_NOTHING_MORE; lpfc_els_rsp_reject(phba, stat.un.lsRjtError, cmdiocb, ndlp); return 0; } } pcmd = (struct lpfc_dmabuf *) cmdiocb->context2; lp = (uint32_t *) pcmd->virt; sp = (struct serv_parm *) ((uint8_t *) lp + sizeof (uint32_t)); if ((lpfc_check_sparm(phba, ndlp, sp, CLASS3) == 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(phba, stat.un.lsRjtError, cmdiocb, ndlp); return (0); } icmd = &cmdiocb->iocb; /* PLOGI chkparm OK */ lpfc_printf_log(phba, KERN_INFO, LOG_ELS, "%d:0114 PLOGI chkparm OK Data: x%x x%x x%x x%x\n", phba->brd_no, ndlp->nlp_DID, ndlp->nlp_state, ndlp->nlp_flag, ndlp->nlp_rpi); if ((phba->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; /* no need to reg_login if we are already in one of these states */ 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_els_rsp_acc(phba, ELS_CMD_PLOGI, cmdiocb, ndlp, NULL, 0); return (1); } if ((phba->fc_flag & FC_PT2PT) && !(phba->fc_flag & FC_PT2PT_PLOGI)) { /* rcv'ed PLOGI decides what our NPortId will be */ phba->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; rc = lpfc_sli_issue_mbox (phba, mbox, (MBX_NOWAIT | MBX_STOP_IOCB)); if (rc == MBX_NOT_FINISHED) { mempool_free( mbox, phba->mbox_mem_pool); goto out; } lpfc_can_disctmo(phba); } mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); if (mbox == NULL) goto out; if (lpfc_reg_login(phba, icmd->un.rcvels.remoteID, (uint8_t *) sp, mbox, 0)) { 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 = ndlp; ndlp->nlp_flag |= NLP_ACC_REGLOGIN; /* If there is an outstanding PLOGI issued, abort it before * sending ACC rsp to PLOGI recieved. */ if (ndlp->nlp_state == NLP_STE_PLOGI_ISSUE) { /* software abort outstanding PLOGI */ lpfc_els_abort(phba, ndlp, 1); } ndlp->nlp_flag |= NLP_RCV_PLOGI; lpfc_els_rsp_acc(phba, ELS_CMD_PLOGI, cmdiocb, ndlp, mbox, 0); return (1); out: stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC; stat.un.b.lsRjtRsnCodeExp = LSEXP_OUT_OF_RESOURCE; lpfc_els_rsp_reject(phba, stat.un.lsRjtError, cmdiocb, ndlp); return (0); } static int lpfc_rcv_padisc(struct lpfc_hba * phba, struct lpfc_nodelist * ndlp, struct lpfc_iocbq *cmdiocb) { 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(phba, ndlp, pnn, ppn))) { if (cmd == ELS_CMD_ADISC) { lpfc_els_rsp_adisc_acc(phba, cmdiocb, ndlp); } else { lpfc_els_rsp_acc(phba, ELS_CMD_PLOGI, cmdiocb, ndlp, NULL, 0); } 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(phba, stat.un.lsRjtError, cmdiocb, ndlp); ndlp->nlp_last_elscmd = (unsigned long)ELS_CMD_PLOGI; /* 1 sec timeout */ mod_timer(&ndlp->nlp_delayfunc, jiffies + HZ); spin_lock_irq(phba->host->host_lock); ndlp->nlp_flag |= NLP_DELAY_TMO; spin_unlock_irq(phba->host->host_lock); ndlp->nlp_state = NLP_STE_NPR_NODE; lpfc_nlp_list(phba, ndlp, NLP_NPR_LIST); return (0); } static int lpfc_rcv_logo(struct lpfc_hba * phba, struct lpfc_nodelist * ndlp, struct lpfc_iocbq *cmdiocb) { /* Put ndlp on NPR list 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. */ ndlp->nlp_flag |= NLP_LOGO_ACC; lpfc_els_rsp_acc(phba, ELS_CMD_ACC, cmdiocb, ndlp, NULL, 0); if (!(ndlp->nlp_type & NLP_FABRIC)) { /* Only try to re-login if this is NOT a Fabric Node */ ndlp->nlp_last_elscmd = (unsigned long)ELS_CMD_PLOGI; mod_timer(&ndlp->nlp_delayfunc, jiffies + HZ * 1); spin_lock_irq(phba->host->host_lock); ndlp->nlp_flag |= NLP_DELAY_TMO; spin_unlock_irq(phba->host->host_lock); } ndlp->nlp_state = NLP_STE_NPR_NODE; lpfc_nlp_list(phba, ndlp, NLP_NPR_LIST); ndlp->nlp_flag &= ~NLP_NPR_ADISC; /* 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_hba * phba, 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; 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->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; fc_remote_port_rolechg(rport, roles); } } static uint32_t lpfc_disc_set_adisc(struct lpfc_hba * phba, struct lpfc_nodelist * ndlp) { /* Check config parameter use-adisc or FCP-2 */ if ((phba->cfg_use_adisc == 0) && !(phba->fc_flag & FC_RSCN_MODE)) { if (!(ndlp->nlp_fcp_info & NLP_FCP_2_DEVICE)) return (0); } spin_lock_irq(phba->host->host_lock); ndlp->nlp_flag |= NLP_NPR_ADISC; spin_unlock_irq(phba->host->host_lock); return (1); } static uint32_t lpfc_disc_noop(struct lpfc_hba * phba, struct lpfc_nodelist * ndlp, void *arg, uint32_t evt) { /* This routine does nothing, just return the current state */ return (ndlp->nlp_state); } static uint32_t lpfc_disc_illegal(struct lpfc_hba * phba, struct lpfc_nodelist * ndlp, void *arg, uint32_t evt) { lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY, "%d:0253 Illegal State Transition: node x%x event x%x, " "state x%x Data: x%x x%x\n", phba->brd_no, 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_hba * phba, struct lpfc_nodelist * ndlp, void *arg, uint32_t evt) { struct lpfc_iocbq *cmdiocb; cmdiocb = (struct lpfc_iocbq *) arg; if (lpfc_rcv_plogi(phba, ndlp, cmdiocb)) { ndlp->nlp_state = NLP_STE_UNUSED_NODE; lpfc_nlp_list(phba, ndlp, NLP_UNUSED_LIST); return (ndlp->nlp_state); } lpfc_nlp_list(phba, ndlp, NLP_NO_LIST); return (NLP_STE_FREED_NODE); } static uint32_t lpfc_rcv_els_unused_node(struct lpfc_hba * phba, struct lpfc_nodelist * ndlp, void *arg, uint32_t evt) { lpfc_issue_els_logo(phba, ndlp, 0); lpfc_nlp_list(phba, ndlp, NLP_UNUSED_LIST); return (ndlp->nlp_state); } static uint32_t lpfc_rcv_logo_unused_node(struct lpfc_hba * phba, struct lpfc_nodelist * ndlp, void *arg, uint32_t evt) { struct lpfc_iocbq *cmdiocb; cmdiocb = (struct lpfc_iocbq *) arg; spin_lock_irq(phba->host->host_lock); ndlp->nlp_flag |= NLP_LOGO_ACC; spin_unlock_irq(phba->host->host_lock); lpfc_els_rsp_acc(phba, ELS_CMD_ACC, cmdiocb, ndlp, NULL, 0); lpfc_nlp_list(phba, ndlp, NLP_UNUSED_LIST); return (ndlp->nlp_state); } static uint32_t lpfc_cmpl_logo_unused_node(struct lpfc_hba * phba, struct lpfc_nodelist * ndlp, void *arg, uint32_t evt) { lpfc_nlp_list(phba, ndlp, NLP_NO_LIST); return (NLP_STE_FREED_NODE); } static uint32_t lpfc_device_rm_unused_node(struct lpfc_hba * phba, struct lpfc_nodelist * ndlp, void *arg, uint32_t evt) { lpfc_nlp_list(phba, ndlp, NLP_NO_LIST); return (NLP_STE_FREED_NODE); } static uint32_t lpfc_rcv_plogi_plogi_issue(struct lpfc_hba * phba, struct lpfc_nodelist * ndlp, void *arg, uint32_t evt) { struct lpfc_iocbq *cmdiocb = arg; struct lpfc_dmabuf *pcmd; struct serv_parm *sp; uint32_t *lp; struct ls_rjt stat; int port_cmp; pcmd = (struct lpfc_dmabuf *) cmdiocb->context2; lp = (uint32_t *) pcmd->virt; sp = (struct serv_parm *) ((uint8_t *) lp + sizeof (uint32_t)); 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(&phba->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(phba, stat.un.lsRjtError, cmdiocb, ndlp); } else { lpfc_rcv_plogi(phba, ndlp, cmdiocb); } /* if our portname was less */ return (ndlp->nlp_state); } static uint32_t lpfc_rcv_els_plogi_issue(struct lpfc_hba * phba, struct lpfc_nodelist * ndlp, void *arg, uint32_t evt) { struct lpfc_iocbq *cmdiocb; cmdiocb = (struct lpfc_iocbq *) arg; /* software abort outstanding PLOGI */ lpfc_els_abort(phba, ndlp, 1); mod_timer(&ndlp->nlp_delayfunc, jiffies + HZ * 1); spin_lock_irq(phba->host->host_lock); ndlp->nlp_flag |= NLP_DELAY_TMO; spin_unlock_irq(phba->host->host_lock); if (evt == NLP_EVT_RCV_LOGO) { lpfc_els_rsp_acc(phba, ELS_CMD_ACC, cmdiocb, ndlp, NULL, 0); } else { lpfc_issue_els_logo(phba, ndlp, 0); } /* Put ndlp in npr list set plogi timer for 1 sec */ ndlp->nlp_last_elscmd = (unsigned long)ELS_CMD_PLOGI; ndlp->nlp_state = NLP_STE_NPR_NODE; lpfc_nlp_list(phba, ndlp, NLP_NPR_LIST); return (ndlp->nlp_state); } static uint32_t lpfc_cmpl_plogi_plogi_issue(struct lpfc_hba * phba, struct lpfc_nodelist * ndlp, void *arg, uint32_t evt) { struct lpfc_iocbq *cmdiocb, *rspiocb; struct lpfc_dmabuf *pcmd, *prsp; 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) { 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); lp = (uint32_t *) prsp->virt; sp = (struct serv_parm *) ((uint8_t *) lp + sizeof (uint32_t)); if (!lpfc_check_sparm(phba, ndlp, sp, CLASS3)) goto out; /* PLOGI chkparm OK */ lpfc_printf_log(phba, KERN_INFO, LOG_ELS, "%d:0121 PLOGI chkparm OK " "Data: x%x x%x x%x x%x\n", phba->brd_no, ndlp->nlp_DID, ndlp->nlp_state, ndlp->nlp_flag, ndlp->nlp_rpi); if ((phba->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 (!(mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL))) goto out; lpfc_unreg_rpi(phba, ndlp); if (lpfc_reg_login (phba, irsp->un.elsreq64.remoteID, (uint8_t *) sp, mbox, 0) == 0) { /* set_slim mailbox command needs to * execute first, queue this command to * be processed later. */ 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: mbox->mbox_cmpl = lpfc_mbx_cmpl_reg_login; } mbox->context2 = ndlp; if (lpfc_sli_issue_mbox(phba, mbox, (MBX_NOWAIT | MBX_STOP_IOCB)) != MBX_NOT_FINISHED) { ndlp->nlp_state = NLP_STE_REG_LOGIN_ISSUE; lpfc_nlp_list(phba, ndlp, NLP_REGLOGIN_LIST); return (ndlp->nlp_state); } mempool_free(mbox, phba->mbox_mem_pool); } else { mempool_free(mbox, phba->mbox_mem_pool); } out: /* Free this node since the driver cannot login or has the wrong sparm */ lpfc_nlp_list(phba, ndlp, NLP_NO_LIST); return (NLP_STE_FREED_NODE); } static uint32_t lpfc_device_rm_plogi_issue(struct lpfc_hba * phba, struct lpfc_nodelist * ndlp, void *arg, uint32_t evt) { /* software abort outstanding PLOGI */ lpfc_els_abort(phba, ndlp, 1); lpfc_nlp_list(phba, ndlp, NLP_NO_LIST); return (NLP_STE_FREED_NODE); } static uint32_t lpfc_device_recov_plogi_issue(struct lpfc_hba * phba, struct lpfc_nodelist * ndlp, void *arg, uint32_t evt) { /* software abort outstanding PLOGI */ lpfc_els_abort(phba, ndlp, 1); ndlp->nlp_state = NLP_STE_NPR_NODE; lpfc_nlp_list(phba, ndlp, NLP_NPR_LIST); spin_lock_irq(phba->host->host_lock); ndlp->nlp_flag &= ~NLP_NPR_2B_DISC; spin_unlock_irq(phba->host->host_lock); return (ndlp->nlp_state); } static uint32_t lpfc_rcv_plogi_adisc_issue(struct lpfc_hba * phba, struct lpfc_nodelist * ndlp, void *arg, uint32_t evt) { struct lpfc_iocbq *cmdiocb; /* software abort outstanding ADISC */ lpfc_els_abort(phba, ndlp, 1); cmdiocb = (struct lpfc_iocbq *) arg; if (lpfc_rcv_plogi(phba, ndlp, cmdiocb)) { return (ndlp->nlp_state); } ndlp->nlp_state = NLP_STE_PLOGI_ISSUE; lpfc_nlp_list(phba, ndlp, NLP_PLOGI_LIST); lpfc_issue_els_plogi(phba, ndlp, 0); return (ndlp->nlp_state); } static uint32_t lpfc_rcv_prli_adisc_issue(struct lpfc_hba * phba, struct lpfc_nodelist * ndlp, void *arg, uint32_t evt) { struct lpfc_iocbq *cmdiocb; cmdiocb = (struct lpfc_iocbq *) arg; lpfc_els_rsp_prli_acc(phba, cmdiocb, ndlp); return (ndlp->nlp_state); } static uint32_t lpfc_rcv_logo_adisc_issue(struct lpfc_hba * phba, struct lpfc_nodelist * ndlp, void *arg, uint32_t evt) { struct lpfc_iocbq *cmdiocb; cmdiocb = (struct lpfc_iocbq *) arg; /* software abort outstanding ADISC */ lpfc_els_abort(phba, ndlp, 0); lpfc_rcv_logo(phba, ndlp, cmdiocb); return (ndlp->nlp_state); } static uint32_t lpfc_rcv_padisc_adisc_issue(struct lpfc_hba * phba, struct lpfc_nodelist * ndlp, void *arg, uint32_t evt) { struct lpfc_iocbq *cmdiocb; cmdiocb = (struct lpfc_iocbq *) arg; lpfc_rcv_padisc(phba, ndlp, cmdiocb); return (ndlp->nlp_state); } static uint32_t lpfc_rcv_prlo_adisc_issue(struct lpfc_hba * phba, 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(phba, ndlp, cmdiocb); return (ndlp->nlp_state); } static uint32_t lpfc_cmpl_adisc_adisc_issue(struct lpfc_hba * phba, struct lpfc_nodelist * ndlp, void *arg, uint32_t evt) { struct lpfc_iocbq *cmdiocb, *rspiocb; IOCB_t *irsp; ADISC *ap; 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(phba, ndlp, &ap->nodeName, &ap->portName))) { ndlp->nlp_last_elscmd = (unsigned long)ELS_CMD_PLOGI; /* 1 sec timeout */ mod_timer(&ndlp->nlp_delayfunc, jiffies + HZ); spin_lock_irq(phba->host->host_lock); ndlp->nlp_flag |= NLP_DELAY_TMO; spin_unlock_irq(phba->host->host_lock); memset(&ndlp->nlp_nodename, 0, sizeof (struct lpfc_name)); memset(&ndlp->nlp_portname, 0, sizeof (struct lpfc_name)); ndlp->nlp_state = NLP_STE_NPR_NODE; lpfc_nlp_list(phba, ndlp, NLP_NPR_LIST); lpfc_unreg_rpi(phba, ndlp); return (ndlp->nlp_state); } if (ndlp->nlp_type & NLP_FCP_TARGET) { ndlp->nlp_state = NLP_STE_MAPPED_NODE; lpfc_nlp_list(phba, ndlp, NLP_MAPPED_LIST); } else { ndlp->nlp_state = NLP_STE_UNMAPPED_NODE; lpfc_nlp_list(phba, ndlp, NLP_UNMAPPED_LIST); } return (ndlp->nlp_state); } static uint32_t lpfc_device_rm_adisc_issue(struct lpfc_hba * phba, struct lpfc_nodelist * ndlp, void *arg, uint32_t evt) { /* software abort outstanding ADISC */ lpfc_els_abort(phba, ndlp, 1); lpfc_nlp_list(phba, ndlp, NLP_NO_LIST); return (NLP_STE_FREED_NODE); } static uint32_t lpfc_device_recov_adisc_issue(struct lpfc_hba * phba, struct lpfc_nodelist * ndlp, void *arg, uint32_t evt) { /* software abort outstanding ADISC */ lpfc_els_abort(phba, ndlp, 1); ndlp->nlp_state = NLP_STE_NPR_NODE; lpfc_nlp_list(phba, ndlp, NLP_NPR_LIST); spin_lock_irq(phba->host->host_lock); ndlp->nlp_flag &= ~NLP_NPR_2B_DISC; spin_unlock_irq(phba->host->host_lock); lpfc_disc_set_adisc(phba, ndlp); return (ndlp->nlp_state); } static uint32_t lpfc_rcv_plogi_reglogin_issue(struct lpfc_hba * phba, struct lpfc_nodelist * ndlp, void *arg, uint32_t evt) { struct lpfc_iocbq *cmdiocb; cmdiocb = (struct lpfc_iocbq *) arg; lpfc_rcv_plogi(phba, ndlp, cmdiocb); return (ndlp->nlp_state); } static uint32_t lpfc_rcv_prli_reglogin_issue(struct lpfc_hba * phba, struct lpfc_nodelist * ndlp, void *arg, uint32_t evt) { struct lpfc_iocbq *cmdiocb; cmdiocb = (struct lpfc_iocbq *) arg; lpfc_els_rsp_prli_acc(phba, cmdiocb, ndlp); return (ndlp->nlp_state); } static uint32_t lpfc_rcv_logo_reglogin_issue(struct lpfc_hba * phba, struct lpfc_nodelist * ndlp, void *arg, uint32_t evt) { struct lpfc_iocbq *cmdiocb; cmdiocb = (struct lpfc_iocbq *) arg; lpfc_rcv_logo(phba, ndlp, cmdiocb); return (ndlp->nlp_state); } static uint32_t lpfc_rcv_padisc_reglogin_issue(struct lpfc_hba * phba, struct lpfc_nodelist * ndlp, void *arg, uint32_t evt) { struct lpfc_iocbq *cmdiocb; cmdiocb = (struct lpfc_iocbq *) arg; lpfc_rcv_padisc(phba, ndlp, cmdiocb); return (ndlp->nlp_state); } static uint32_t lpfc_rcv_prlo_reglogin_issue(struct lpfc_hba * phba, struct lpfc_nodelist * ndlp, void *arg, uint32_t evt) { struct lpfc_iocbq *cmdiocb; cmdiocb = (struct lpfc_iocbq *) arg; lpfc_els_rsp_acc(phba, ELS_CMD_ACC, cmdiocb, ndlp, NULL, 0); return (ndlp->nlp_state); } static uint32_t lpfc_cmpl_reglogin_reglogin_issue(struct lpfc_hba * phba, struct lpfc_nodelist * ndlp, void *arg, uint32_t evt) { LPFC_MBOXQ_t *pmb; MAILBOX_t *mb; uint32_t did; pmb = (LPFC_MBOXQ_t *) arg; mb = &pmb->mb; did = mb->un.varWords[1]; if (mb->mbxStatus) { /* RegLogin failed */ lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY, "%d:0246 RegLogin failed Data: x%x x%x x%x\n", phba->brd_no, did, mb->mbxStatus, phba->hba_state); mod_timer(&ndlp->nlp_delayfunc, jiffies + HZ * 1); spin_lock_irq(phba->host->host_lock); ndlp->nlp_flag |= NLP_DELAY_TMO; spin_unlock_irq(phba->host->host_lock); lpfc_issue_els_logo(phba, ndlp, 0); /* Put ndlp in npr list set plogi timer for 1 sec */ ndlp->nlp_last_elscmd = (unsigned long)ELS_CMD_PLOGI; ndlp->nlp_state = NLP_STE_NPR_NODE; lpfc_nlp_list(phba, ndlp, NLP_NPR_LIST); return (ndlp->nlp_state); } ndlp->nlp_rpi = mb->un.varWords[0]; /* Only if we are not a fabric nport do we issue PRLI */ if (!(ndlp->nlp_type & NLP_FABRIC)) { ndlp->nlp_state = NLP_STE_PRLI_ISSUE; lpfc_nlp_list(phba, ndlp, NLP_PRLI_LIST); lpfc_issue_els_prli(phba, ndlp, 0); } else { ndlp->nlp_state = NLP_STE_UNMAPPED_NODE; lpfc_nlp_list(phba, ndlp, NLP_UNMAPPED_LIST); } return (ndlp->nlp_state); } static uint32_t lpfc_device_rm_reglogin_issue(struct lpfc_hba * phba, struct lpfc_nodelist * ndlp, void *arg, uint32_t evt) { lpfc_nlp_list(phba, ndlp, NLP_NO_LIST); return (NLP_STE_FREED_NODE); } static uint32_t lpfc_device_recov_reglogin_issue(struct lpfc_hba * phba, struct lpfc_nodelist * ndlp, void *arg, uint32_t evt) { ndlp->nlp_state = NLP_STE_NPR_NODE; lpfc_nlp_list(phba, ndlp, NLP_NPR_LIST); spin_lock_irq(phba->host->host_lock); ndlp->nlp_flag &= ~NLP_NPR_2B_DISC; spin_unlock_irq(phba->host->host_lock); return (ndlp->nlp_state); } static uint32_t lpfc_rcv_plogi_prli_issue(struct lpfc_hba * phba, struct lpfc_nodelist * ndlp, void *arg, uint32_t evt) { struct lpfc_iocbq *cmdiocb; cmdiocb = (struct lpfc_iocbq *) arg; lpfc_rcv_plogi(phba, ndlp, cmdiocb); return (ndlp->nlp_state); } static uint32_t lpfc_rcv_prli_prli_issue(struct lpfc_hba * phba, struct lpfc_nodelist * ndlp, void *arg, uint32_t evt) { struct lpfc_iocbq *cmdiocb; cmdiocb = (struct lpfc_iocbq *) arg; lpfc_els_rsp_prli_acc(phba, cmdiocb, ndlp); return (ndlp->nlp_state); } static uint32_t lpfc_rcv_logo_prli_issue(struct lpfc_hba * phba, struct lpfc_nodelist * ndlp, void *arg, uint32_t evt) { struct lpfc_iocbq *cmdiocb; cmdiocb = (struct lpfc_iocbq *) arg; /* Software abort outstanding PRLI before sending acc */ lpfc_els_abort(phba, ndlp, 1); lpfc_rcv_logo(phba, ndlp, cmdiocb); return (ndlp->nlp_state); } static uint32_t lpfc_rcv_padisc_prli_issue(struct lpfc_hba * phba, struct lpfc_nodelist * ndlp, void *arg, uint32_t evt) { struct lpfc_iocbq *cmdiocb; cmdiocb = (struct lpfc_iocbq *) arg; lpfc_rcv_padisc(phba, 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_hba * phba, struct lpfc_nodelist * ndlp, void *arg, uint32_t evt) { struct lpfc_iocbq *cmdiocb; cmdiocb = (struct lpfc_iocbq *) arg; lpfc_els_rsp_acc(phba, ELS_CMD_ACC, cmdiocb, ndlp, NULL, 0); return (ndlp->nlp_state); } static uint32_t lpfc_cmpl_prli_prli_issue(struct lpfc_hba * phba, struct lpfc_nodelist * ndlp, void *arg, uint32_t evt) { struct lpfc_iocbq *cmdiocb, *rspiocb; 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) { ndlp->nlp_state = NLP_STE_UNMAPPED_NODE; lpfc_nlp_list(phba, ndlp, NLP_UNMAPPED_LIST); 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; 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->Retry) ndlp->nlp_fcp_info |= NLP_FCP_2_DEVICE; } ndlp->nlp_state = NLP_STE_MAPPED_NODE; lpfc_nlp_list(phba, ndlp, NLP_MAPPED_LIST); 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_hba * phba, struct lpfc_nodelist * ndlp, void *arg, uint32_t evt) { /* software abort outstanding PRLI */ lpfc_els_abort(phba, ndlp, 1); lpfc_nlp_list(phba, ndlp, NLP_NO_LIST); 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_hba * phba, struct lpfc_nodelist * ndlp, void *arg, uint32_t evt) { /* software abort outstanding PRLI */ lpfc_els_abort(phba, ndlp, 1); ndlp->nlp_state = NLP_STE_NPR_NODE; lpfc_nlp_list(phba, ndlp, NLP_NPR_LIST); spin_lock_irq(phba->host->host_lock); ndlp->nlp_flag &= ~NLP_NPR_2B_DISC; spin_unlock_irq(phba->host->host_lock); return (ndlp->nlp_state); } static uint32_t lpfc_rcv_plogi_unmap_node(struct lpfc_hba * phba, struct lpfc_nodelist * ndlp, void *arg, uint32_t evt) { struct lpfc_iocbq *cmdiocb; cmdiocb = (struct lpfc_iocbq *) arg; lpfc_rcv_plogi(phba, ndlp, cmdiocb); return (ndlp->nlp_state); } static uint32_t lpfc_rcv_prli_unmap_node(struct lpfc_hba * phba, struct lpfc_nodelist * ndlp, void *arg, uint32_t evt) { struct lpfc_iocbq *cmdiocb; cmdiocb = (struct lpfc_iocbq *) arg; lpfc_rcv_prli(phba, ndlp, cmdiocb); lpfc_els_rsp_prli_acc(phba, cmdiocb, ndlp); return (ndlp->nlp_state); } static uint32_t lpfc_rcv_logo_unmap_node(struct lpfc_hba * phba, struct lpfc_nodelist * ndlp, void *arg, uint32_t evt) { struct lpfc_iocbq *cmdiocb; cmdiocb = (struct lpfc_iocbq *) arg; lpfc_rcv_logo(phba, ndlp, cmdiocb); return (ndlp->nlp_state); } static uint32_t lpfc_rcv_padisc_unmap_node(struct lpfc_hba * phba, struct lpfc_nodelist * ndlp, void *arg, uint32_t evt) { struct lpfc_iocbq *cmdiocb; cmdiocb = (struct lpfc_iocbq *) arg; lpfc_rcv_padisc(phba, ndlp, cmdiocb); return (ndlp->nlp_state); } static uint32_t lpfc_rcv_prlo_unmap_node(struct lpfc_hba * phba, 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(phba, ndlp, cmdiocb); return (ndlp->nlp_state); } static uint32_t lpfc_device_recov_unmap_node(struct lpfc_hba * phba, struct lpfc_nodelist * ndlp, void *arg, uint32_t evt) { ndlp->nlp_state = NLP_STE_NPR_NODE; lpfc_nlp_list(phba, ndlp, NLP_NPR_LIST); ndlp->nlp_flag &= ~NLP_NPR_2B_DISC; lpfc_disc_set_adisc(phba, ndlp); return (ndlp->nlp_state); } static uint32_t lpfc_rcv_plogi_mapped_node(struct lpfc_hba * phba, struct lpfc_nodelist * ndlp, void *arg, uint32_t evt) { struct lpfc_iocbq *cmdiocb; cmdiocb = (struct lpfc_iocbq *) arg; lpfc_rcv_plogi(phba, ndlp, cmdiocb); return (ndlp->nlp_state); } static uint32_t lpfc_rcv_prli_mapped_node(struct lpfc_hba * phba, struct lpfc_nodelist * ndlp, void *arg, uint32_t evt) { struct lpfc_iocbq *cmdiocb; cmdiocb = (struct lpfc_iocbq *) arg; lpfc_els_rsp_prli_acc(phba, cmdiocb, ndlp); return (ndlp->nlp_state); } static uint32_t lpfc_rcv_logo_mapped_node(struct lpfc_hba * phba, struct lpfc_nodelist * ndlp, void *arg, uint32_t evt) { struct lpfc_iocbq *cmdiocb; cmdiocb = (struct lpfc_iocbq *) arg; lpfc_rcv_logo(phba, ndlp, cmdiocb); return (ndlp->nlp_state); } static uint32_t lpfc_rcv_padisc_mapped_node(struct lpfc_hba * phba, struct lpfc_nodelist * ndlp, void *arg, uint32_t evt) { struct lpfc_iocbq *cmdiocb; cmdiocb = (struct lpfc_iocbq *) arg; lpfc_rcv_padisc(phba, ndlp, cmdiocb); return (ndlp->nlp_state); } static uint32_t lpfc_rcv_prlo_mapped_node(struct lpfc_hba * phba, struct lpfc_nodelist * ndlp, void *arg, uint32_t evt) { struct lpfc_iocbq *cmdiocb; cmdiocb = (struct lpfc_iocbq *) arg; /* flush the target */ spin_lock_irq(phba->host->host_lock); lpfc_sli_abort_iocb(phba, &phba->sli.ring[phba->sli.fcp_ring], ndlp->nlp_sid, 0, 0, LPFC_CTX_TGT); spin_unlock_irq(phba->host->host_lock); /* Treat like rcv logo */ lpfc_rcv_logo(phba, ndlp, cmdiocb); return (ndlp->nlp_state); } static uint32_t lpfc_device_recov_mapped_node(struct lpfc_hba * phba, struct lpfc_nodelist * ndlp, void *arg, uint32_t evt) { ndlp->nlp_state = NLP_STE_NPR_NODE; lpfc_nlp_list(phba, ndlp, NLP_NPR_LIST); spin_lock_irq(phba->host->host_lock); ndlp->nlp_flag &= ~NLP_NPR_2B_DISC; spin_unlock_irq(phba->host->host_lock); lpfc_disc_set_adisc(phba, ndlp); return (ndlp->nlp_state); } static uint32_t lpfc_rcv_plogi_npr_node(struct lpfc_hba * phba, struct lpfc_nodelist * ndlp, void *arg, uint32_t evt) { struct lpfc_iocbq *cmdiocb; cmdiocb = (struct lpfc_iocbq *) arg; /* Ignore PLOGI if we have an outstanding LOGO */ if (ndlp->nlp_flag & NLP_LOGO_SND) { return (ndlp->nlp_state); } if (lpfc_rcv_plogi(phba, ndlp, cmdiocb)) { spin_lock_irq(phba->host->host_lock); ndlp->nlp_flag &= ~(NLP_NPR_ADISC | NLP_NPR_2B_DISC); spin_unlock_irq(phba->host->host_lock); return (ndlp->nlp_state); } /* send PLOGI immediately, move to PLOGI issue state */ if (!(ndlp->nlp_flag & NLP_DELAY_TMO)) { ndlp->nlp_state = NLP_STE_PLOGI_ISSUE; lpfc_nlp_list(phba, ndlp, NLP_PLOGI_LIST); lpfc_issue_els_plogi(phba, ndlp, 0); } return (ndlp->nlp_state); } static uint32_t lpfc_rcv_prli_npr_node(struct lpfc_hba * phba, struct lpfc_nodelist * ndlp, void *arg, uint32_t evt) { struct lpfc_iocbq *cmdiocb; struct ls_rjt stat; cmdiocb = (struct lpfc_iocbq *) arg; 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(phba, stat.un.lsRjtError, cmdiocb, ndlp); if (!(ndlp->nlp_flag & NLP_DELAY_TMO)) { if (ndlp->nlp_flag & NLP_NPR_ADISC) { ndlp->nlp_state = NLP_STE_ADISC_ISSUE; lpfc_nlp_list(phba, ndlp, NLP_ADISC_LIST); lpfc_issue_els_adisc(phba, ndlp, 0); } else { ndlp->nlp_state = NLP_STE_PLOGI_ISSUE; lpfc_nlp_list(phba, ndlp, NLP_PLOGI_LIST); lpfc_issue_els_plogi(phba, ndlp, 0); } } return (ndlp->nlp_state); } static uint32_t lpfc_rcv_logo_npr_node(struct lpfc_hba * phba, struct lpfc_nodelist * ndlp, void *arg, uint32_t evt) { struct lpfc_iocbq *cmdiocb; cmdiocb = (struct lpfc_iocbq *) arg; lpfc_rcv_logo(phba, ndlp, cmdiocb); return (ndlp->nlp_state); } static uint32_t lpfc_rcv_padisc_npr_node(struct lpfc_hba * phba, struct lpfc_nodelist * ndlp, void *arg, uint32_t evt) { struct lpfc_iocbq *cmdiocb; cmdiocb = (struct lpfc_iocbq *) arg; lpfc_rcv_padisc(phba, ndlp, cmdiocb); if (!(ndlp->nlp_flag & NLP_DELAY_TMO)) { if (ndlp->nlp_flag & NLP_NPR_ADISC) { ndlp->nlp_state = NLP_STE_ADISC_ISSUE; lpfc_nlp_list(phba, ndlp, NLP_ADISC_LIST); lpfc_issue_els_adisc(phba, ndlp, 0); } else { ndlp->nlp_state = NLP_STE_PLOGI_ISSUE; lpfc_nlp_list(phba, ndlp, NLP_PLOGI_LIST); lpfc_issue_els_plogi(phba, ndlp, 0); } } return (ndlp->nlp_state); } static uint32_t lpfc_rcv_prlo_npr_node(struct lpfc_hba * phba, struct lpfc_nodelist * ndlp, void *arg, uint32_t evt) { struct lpfc_iocbq *cmdiocb; cmdiocb = (struct lpfc_iocbq *) arg; lpfc_els_rsp_acc(phba, ELS_CMD_ACC, cmdiocb, ndlp, NULL, 0); if (ndlp->nlp_flag & NLP_DELAY_TMO) { if (ndlp->nlp_last_elscmd == (unsigned long)ELS_CMD_PLOGI) { return (ndlp->nlp_state); } else { spin_lock_irq(phba->host->host_lock); ndlp->nlp_flag &= ~NLP_DELAY_TMO; spin_unlock_irq(phba->host->host_lock); del_timer_sync(&ndlp->nlp_delayfunc); if (!list_empty(&ndlp->els_retry_evt.evt_listp)) list_del_init(&ndlp->els_retry_evt.evt_listp); } } ndlp->nlp_state = NLP_STE_PLOGI_ISSUE; lpfc_nlp_list(phba, ndlp, NLP_PLOGI_LIST); lpfc_issue_els_plogi(phba, ndlp, 0); return (ndlp->nlp_state); } static uint32_t lpfc_cmpl_logo_npr_node(struct lpfc_hba * phba, struct lpfc_nodelist * ndlp, void *arg, uint32_t evt) { lpfc_unreg_rpi(phba, ndlp); /* This routine does nothing, just return the current state */ return (ndlp->nlp_state); } static uint32_t lpfc_cmpl_reglogin_npr_node(struct lpfc_hba * phba, struct lpfc_nodelist * ndlp, void *arg, uint32_t evt) { LPFC_MBOXQ_t *pmb; MAILBOX_t *mb; pmb = (LPFC_MBOXQ_t *) arg; mb = &pmb->mb; ndlp->nlp_rpi = mb->un.varWords[0]; return (ndlp->nlp_state); } static uint32_t lpfc_device_rm_npr_node(struct lpfc_hba * phba, struct lpfc_nodelist * ndlp, void *arg, uint32_t evt) { lpfc_nlp_list(phba, ndlp, NLP_NO_LIST); return (NLP_STE_FREED_NODE); } static uint32_t lpfc_device_recov_npr_node(struct lpfc_hba * phba, struct lpfc_nodelist * ndlp, void *arg, uint32_t evt) { spin_lock_irq(phba->host->host_lock); ndlp->nlp_flag &= ~NLP_NPR_2B_DISC; spin_unlock_irq(phba->host->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 nodev 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_hba *, 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_disc_illegal, /* DEVICE_RECOVERY */ lpfc_rcv_plogi_plogi_issue, /* RCV_PLOGI PLOGI_ISSUE */ lpfc_rcv_els_plogi_issue, /* RCV_PRLI */ lpfc_rcv_els_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_disc_illegal, /* CMPL_LOGO */ lpfc_disc_illegal, /* CMPL_ADISC */ lpfc_disc_illegal, /* 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_disc_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_disc_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_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_disc_noop, /* CMPL_PLOGI */ lpfc_disc_noop, /* CMPL_PRLI */ lpfc_cmpl_logo_npr_node, /* CMPL_LOGO */ lpfc_disc_noop, /* 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_hba * phba, struct lpfc_nodelist * ndlp, void *arg, uint32_t evt) { uint32_t cur_state, rc; uint32_t(*func) (struct lpfc_hba *, struct lpfc_nodelist *, void *, uint32_t); ndlp->nlp_disc_refcnt++; cur_state = ndlp->nlp_state; /* DSM in event on NPort in state */ lpfc_printf_log(phba, KERN_INFO, LOG_DISCOVERY, "%d:0211 DSM in event x%x on NPort x%x in state %d " "Data: x%x\n", phba->brd_no, evt, ndlp->nlp_DID, cur_state, ndlp->nlp_flag); func = lpfc_disc_action[(cur_state * NLP_EVT_MAX_EVENT) + evt]; rc = (func) (phba, ndlp, arg, evt); /* DSM out state on NPort */ lpfc_printf_log(phba, KERN_INFO, LOG_DISCOVERY, "%d:0212 DSM out state %d on NPort x%x Data: x%x\n", phba->brd_no, rc, ndlp->nlp_DID, ndlp->nlp_flag); ndlp->nlp_disc_refcnt--; /* Check to see if ndlp removal is deferred */ if ((ndlp->nlp_disc_refcnt == 0) && (ndlp->nlp_flag & NLP_DELAY_REMOVE)) { spin_lock_irq(phba->host->host_lock); ndlp->nlp_flag &= ~NLP_DELAY_REMOVE; spin_unlock_irq(phba->host->host_lock); lpfc_nlp_remove(phba, ndlp); return (NLP_STE_FREED_NODE); } if (rc == NLP_STE_FREED_NODE) return (NLP_STE_FREED_NODE); ndlp->nlp_state = rc; return (rc); }