[SCSI] lpfc 8.3.36: Fixed boot from san failure

Fixed boot from san failure when SLI4 FC device presented on the same PCI bus

The request_firmware interface can induce delays while looking
for firmware files, even if no fw file is present. In some situations
the delays exceeded scan_wait timeouts, resulting in situations in which
the boot device had not been discovered in time.  Boot Device does not
need to be on a lpfc device.

Change request_firmware use to be module paramater driven. Default is to
not attempt firmware download on boot. Add sysfs parameter to invoke
firmware update.

Signed-off-by: James Smart <james.smart@emulex.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
diff --git a/drivers/scsi/lpfc/lpfc.h b/drivers/scsi/lpfc/lpfc.h
index 69b5993..d0ed6c1 100644
--- a/drivers/scsi/lpfc/lpfc.h
+++ b/drivers/scsi/lpfc/lpfc.h
@@ -714,6 +714,7 @@
 	uint32_t cfg_log_verbose;
 	uint32_t cfg_aer_support;
 	uint32_t cfg_sriov_nr_virtfn;
+	uint32_t cfg_request_firmware_upgrade;
 	uint32_t cfg_iocb_cnt;
 	uint32_t cfg_suppress_link_up;
 #define LPFC_INITIALIZE_LINK              0	/* do normal init_link mbox */