[SCSI] lpfc 8.3.5: fix fcp command polling, add FIP mode, performance optimisations and devloss timout fixes

This patch includes the following changes:
- Fixed Panic/Hang when using polling mode for fcp commands
- Added support for Read_rev mbox bits indicating FIP mode of HBA
- Optimize performance of slow-path handling of els responses
- Add code to cleanup orphaned unsolicited receive sequences
- Fixed Devloss timeout when multiple initiators are in same zone

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

drivers/scsi/lpfc/lpfc_hw4.h

@@ -1601,6 +1601,11 @@ struct lpfc_mbx_read_rev {
 #define lpfc_mbx_rd_rev_fcoe_SHIFT		20
 #define lpfc_mbx_rd_rev_fcoe_MASK		0x00000001
 #define lpfc_mbx_rd_rev_fcoe_WORD		word1
+#define lpfc_mbx_rd_rev_cee_ver_SHIFT		21
+#define lpfc_mbx_rd_rev_cee_ver_MASK		0x00000003
+#define lpfc_mbx_rd_rev_cee_ver_WORD		word1
+#define LPFC_PREDCBX_CEE_MODE	0
+#define LPFC_DCBX_CEE_MODE	1
 #define lpfc_mbx_rd_rev_vpd_SHIFT		29
 #define lpfc_mbx_rd_rev_vpd_MASK		0x00000001
 #define lpfc_mbx_rd_rev_vpd_WORD		word1