[SCSI] qla2xxx: Explicitly set the execution-throttle with recent ISPs.

Firmware semantics changed for 24xx and above ISPs in their
handling of the specified execution-throttle passed during
firmware initialization.  The original codes use of a theoretical
maximum (0xffff, as carried over from earlier ISPs) could in fact
act as a throttle in some circumstances.  Now set the value based
of the firmware's own 'resource' (exchange IOCBs) capabilities.

Signed-off-by: Andrew Vasquez <[email protected]>
Signed-off-by: James Bottomley <[email protected]>
diff --git a/drivers/scsi/qla2xxx/qla_def.h b/drivers/scsi/qla2xxx/qla_def.h
index 1a84dbf..e3d4d48905 100644
--- a/drivers/scsi/qla2xxx/qla_def.h
+++ b/drivers/scsi/qla2xxx/qla_def.h
@@ -2432,6 +2432,7 @@
 #define RISC_START_ADDRESS_2100 0x1000
 #define RISC_START_ADDRESS_2300 0x800
 #define RISC_START_ADDRESS_2400 0x100000
+	uint16_t	fw_xcb_count;
 
 	uint16_t	fw_options[16];         /* slots: 1,2,3,10,11 */
 	uint8_t		fw_seriallink_options[4];