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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.c99
1 files changed, 94 insertions, 5 deletions
diff --git a/drivers/scsi/lpfc/lpfc_nportdisc.c b/drivers/scsi/lpfc/lpfc_nportdisc.c
index e331204a4d56..b90820a699fd 100644
--- a/drivers/scsi/lpfc/lpfc_nportdisc.c
+++ b/drivers/scsi/lpfc/lpfc_nportdisc.c
@@ -493,6 +493,9 @@ 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
@@ -505,15 +508,44 @@ lpfc_rcv_logo(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
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) &&
- vport->port_type == LPFC_NPIV_PORT) {
+ if (ndlp->nlp_DID == Fabric_DID) {
+ if (vport->port_state <= LPFC_FDISC)
+ goto out;
lpfc_linkdown_port(vport);
- mod_timer(&ndlp->nlp_delayfunc, jiffies + HZ * 1);
spin_lock_irq(shost->host_lock);
- ndlp->nlp_flag |= NLP_DELAY_TMO;
+ 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);
+ }
- ndlp->nlp_last_elscmd = ELS_CMD_FDISC;
+ if (active_vlink_present) {
+ /*
+ * If there are other active VLinks present,
+ * re-instantiate the Vlink using FDISC.
+ */
+ mod_timer(&ndlp->nlp_delayfunc, jiffies + HZ);
+ 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))) ||
@@ -526,6 +558,7 @@ lpfc_rcv_logo(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
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);
@@ -604,11 +637,55 @@ lpfc_disc_set_adisc(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp)
lpfc_unreg_rpi(vport, ndlp);
return 0;
}
+/**
+ * lpfc_release_rpi - Release a RPI by issueing 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",
@@ -944,6 +1021,18 @@ 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;
}