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authorJames Smart <james.smart@emulex.com>2015-04-07 15:07:11 -0400
committerJames Bottomley <JBottomley@Odin.com>2015-04-10 07:45:54 -0700
commited4afe7405f3839236fd34c7918204640c00e4e8 (patch)
tree4d55fd687ef9df4f31a51ab0a02c173e35094ef4 /drivers/scsi
parentc63779702094bcfdb2ead17181fbcd04b71b0215 (diff)
downloadop-kernel-dev-ed4afe7405f3839236fd34c7918204640c00e4e8.zip
op-kernel-dev-ed4afe7405f3839236fd34c7918204640c00e4e8.tar.gz
lpfc: Fix to handle PLOGI when already logged in
Signed-off-by: Dick Kennedy <dick.kennedy@emulex.com> Signed-off-by: James Smart <james.smart@emulex.com> Reviewed-by: Hannes Reinecke <hare@suse.de> Signed-off-by: James Bottomley <JBottomley@Odin.com>
Diffstat (limited to 'drivers/scsi')
-rw-r--r--drivers/scsi/lpfc/lpfc_nportdisc.c27
1 files changed, 24 insertions, 3 deletions
diff --git a/drivers/scsi/lpfc/lpfc_nportdisc.c b/drivers/scsi/lpfc/lpfc_nportdisc.c
index 5cc1103..3d93363 100644
--- a/drivers/scsi/lpfc/lpfc_nportdisc.c
+++ b/drivers/scsi/lpfc/lpfc_nportdisc.c
@@ -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 */
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