pasemi_mac: Timer and interrupt fixes

Timer and interrupt fixes:

* Be pickier with what kind of interrupts are acked to avoid the device to
  get out of sync with the driver state
* Set RX count threshhold to 1 (for NAPI interrupted mode), TX count
  threshold to 32.
* Set timer thresholds to current max (~16ms).

Signed-off-by: Olof Johansson <olof@lixom.net>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
diff --git a/drivers/net/pasemi_mac.h b/drivers/net/pasemi_mac.h
index 703f1b0..88edaa5 100644
--- a/drivers/net/pasemi_mac.h
+++ b/drivers/net/pasemi_mac.h
@@ -299,6 +299,7 @@
 #define    PAS_STATUS_DCNT_S		16
 #define    PAS_STATUS_BPCNT_M		0x0000ffff00000000ull
 #define    PAS_STATUS_BPCNT_S		32
+#define    PAS_STATUS_CAUSE_M		0xf000000000000000ull
 #define    PAS_STATUS_TIMER		0x1000000000000000ull
 #define    PAS_STATUS_ERROR		0x2000000000000000ull
 #define    PAS_STATUS_SOFT		0x4000000000000000ull