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path: root/drivers/scsi/lpfc/lpfc_nportdisc.c
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Diffstat (limited to 'drivers/scsi/lpfc/lpfc_nportdisc.c')
-rw-r--r--drivers/scsi/lpfc/lpfc_nportdisc.c29
1 files changed, 25 insertions, 4 deletions
diff --git a/drivers/scsi/lpfc/lpfc_nportdisc.c b/drivers/scsi/lpfc/lpfc_nportdisc.c
index 5cc1103d811e..4cb9882af157 100644
--- a/drivers/scsi/lpfc/lpfc_nportdisc.c
+++ b/drivers/scsi/lpfc/lpfc_nportdisc.c
@@ -1,7 +1,7 @@
/*******************************************************************
* This file is part of the Emulex Linux Device Driver for *
* Fibre Channel Host Bus Adapters. *
- * Copyright (C) 2004-2013 Emulex. All rights reserved. *
+ * 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 *
@@ -276,6 +276,7 @@ lpfc_rcv_plogi(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
struct lpfc_hba *phba = vport->phba;
struct lpfc_dmabuf *pcmd;
+ uint64_t nlp_portwwn = 0;
uint32_t *lp;
IOCB_t *icmd;
struct serv_parm *sp;
@@ -332,6 +333,8 @@ lpfc_rcv_plogi(struct lpfc_vport *vport, struct lpfc_nodelist *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;
@@ -367,7 +370,7 @@ lpfc_rcv_plogi(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
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 */
+ /* if already logged in, do implicit logout */
switch (ndlp->nlp_state) {
case NLP_STE_NPR_NODE:
if (!(ndlp->nlp_flag & NLP_NPR_ADISC))
@@ -376,8 +379,26 @@ lpfc_rcv_plogi(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
case NLP_STE_PRLI_ISSUE:
case NLP_STE_UNMAPPED_NODE:
case NLP_STE_MAPPED_NODE:
- lpfc_els_rsp_acc(vport, ELS_CMD_PLOGI, cmdiocb, ndlp, NULL);
- return 1;
+ /* 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 */