[SCSI] lpfc 8.3.11: Driver management improvements via BSG

- Add BSG support for PCI loopback testing.
- Add BSG support for extended mailbox commands.

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_sli.h

@@ -110,6 +110,9 @@ typedef struct lpfcMboxq {
 
 	void (*mbox_cmpl) (struct lpfc_hba *, struct lpfcMboxq *);
 	uint8_t mbox_flag;
+	uint16_t in_ext_byte_len;
+	uint16_t out_ext_byte_len;
+	uint8_t  mbox_offset_word;
 	struct lpfc_mcqe mcqe;
 	struct lpfc_mbx_nembed_sge_virt *sge_array;
 } LPFC_MBOXQ_t;