[SCSI] lpfc 8.3.16: FCoE Discovery and Failover Fixes

- Add support for re-reg'ing changed VPI w/o unregister VPI
- Copy WWN and state from old nodelist when target DID change.
- Clean up old nodelist rport and put the nodelist when target DID change.
- Clear the VFI_REGISTERED flag when UNREG_VFI completes.
- Made both checks of port_state against LPFC_FLOGI and LPFC_FDISC
  non-inclusive for ignoring CVL events.
- Added logic to stop retrying of the ongoing PLOGI and FDISC if
  transitioned back to the FCF rediscovery state in reaction to CVL.
- Removed the dependency of scanning of all the available FCF table
  entries for bulding round-robin bitmap.
- Use the lpfc_sli4_fcf_rr_read_fcf_rec() in responding to
  individual New FCF found event.

Signed-off-by: Alex Iannicelli <alex.iannicelli@emulex.com>
Signed-off-by: James Smart <james.smart@emulex.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>

drivers/scsi/lpfc/lpfc_mbox.c

@@ -815,9 +815,15 @@ void
 lpfc_reg_vpi(struct lpfc_vport *vport, LPFC_MBOXQ_t *pmb)
 {
 	MAILBOX_t *mb = &pmb->u.mb;
+	struct lpfc_hba *phba = vport->phba;
 
 	memset(pmb, 0, sizeof (LPFC_MBOXQ_t));
-
+	/*
+	 * Set the re-reg VPI bit for f/w to update the MAC address.
+	 */
+	if ((phba->sli_rev == LPFC_SLI_REV4) &&
+		!(vport->fc_flag & FC_VPORT_NEEDS_REG_VPI))
+		mb->un.varRegVpi.upd = 1;
 	mb->un.varRegVpi.vpi = vport->vpi + vport->phba->vpi_base;
 	mb->un.varRegVpi.sid = vport->fc_myDID;
 	mb->un.varRegVpi.vfi = vport->vfi + vport->phba->vfi_base;