[SCSI] lpfc 8.3.15: FCoE Related Fixes

FCoE Related Fixes
- Correct find-next-FCF routine so that it searches at next FCF rather
  than current one.
- Enhanced round-robin FCF failover algorithm to re-start on "New FCF"
  async event
- Update the manner in which we look at FCFs while they may be in
  their discovery state.
- Use LPFC_FCOE_NULL_VID macro when checkinf for valid vlan_id for FCF

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>
diff --git a/drivers/scsi/lpfc/lpfc_mbox.c b/drivers/scsi/lpfc/lpfc_mbox.c
index cb5d93b..9c2c7c7 100644
--- a/drivers/scsi/lpfc/lpfc_mbox.c
+++ b/drivers/scsi/lpfc/lpfc_mbox.c
@@ -2045,7 +2045,7 @@
 	       phba->fcf.current_rec.fcf_indx);
 	/* reg_fcf addr mode is bit wise inverted value of fcf addr_mode */
 	bf_set(lpfc_reg_fcfi_mam, reg_fcfi, (~phba->fcf.addr_mode) & 0x3);
-	if (phba->fcf.current_rec.vlan_id != 0xFFFF) {
+	if (phba->fcf.current_rec.vlan_id != LPFC_FCOE_NULL_VID) {
 		bf_set(lpfc_reg_fcfi_vv, reg_fcfi, 1);
 		bf_set(lpfc_reg_fcfi_vlan_tag, reg_fcfi,
 		       phba->fcf.current_rec.vlan_id);