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lpfc: Fix to handle PLOGI when already logged in

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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>
This commit is contained in:
James Smart 2015-04-07 15:07:11 -04:00 committed by James Bottomley
parent c637797020
commit ed4afe7405
1 changed files with 24 additions and 3 deletions
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27
drivers/scsi/lpfc/lpfc_nportdisc.c
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@ -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 */