The NTB Xeon hardware has 16 scratch pad registers and 16 back-to-back
scratch pad registers. Correct the #define to represent this and update
the variable names to reflect their usage.
Authored by: Jon Mason
Obtained from: Linux
Sponsored by: EMC / Isilon Storage Division
#define XEON_MSIX_CNT 4
#define XEON_MAX_SPADS 16
-#define XEON_MAX_COMPAT_SPADS 8
+#define XEON_MAX_COMPAT_SPADS 16
/* Reserve the uppermost bit for link interrupt */
#define XEON_MAX_DB_BITS 15
#define XEON_DB_BITS_PER_VEC 5