[SCSI] lpfc 8.3.14: FCoE Discovery Fixes

- Prevent unregistring of unused FCF when FLOGI is pending.
- Prevent point to point discovery on a FCoE HBA.
- Fixed FCF discovery failure after swapping FCoE port by
  switching over to fast failover method when no FCF matches in-use 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>

1 files changed, 2 insertions, 1 deletions

diff --git a/drivers/scsi/lpfc/lpfc_sli.c b/drivers/scsi/lpfc/lpfc_sli.c
index 9c609546b4ef..f38c05dc5635 100644
--- a/drivers/scsi/lpfc/lpfc_sli.c
+++ b/drivers/scsi/lpfc/lpfc_sli.c
@@ -12404,7 +12404,8 @@ lpfc_sli4_fcf_rr_next_index_get(struct lpfc_hba *phba)
                 next_fcf_index = find_next_bit(phba->fcf.fcf_rr_bmask,
                                                LPFC_SLI4_FCF_TBL_INDX_MAX, 0);
         /* Round robin failover stop condition */
-        if (next_fcf_index == phba->fcf.fcf_rr_init_indx)
+        if ((next_fcf_index == phba->fcf.fcf_rr_init_indx) ||
+                (next_fcf_index >= LPFC_SLI4_FCF_TBL_INDX_MAX))
                 return LPFC_FCOE_FCF_NEXT_NONE;
 
         return next_fcf_index;