[TG3]: Add new one-shot MSI handler
Support one-shot MSI on 5787.
This one-shot MSI idea is credited to David Miller. In this mode, MSI
disables itself automatically after it is generated, saving the driver
a register access to disable it for NAPI.
Signed-off-by: Michael Chan <mchan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/drivers/net/tg3.h b/drivers/net/tg3.h
index ba3466c..6b05d57 100644
--- a/drivers/net/tg3.h
+++ b/drivers/net/tg3.h
@@ -2209,6 +2209,7 @@
#define TG3_FLG2_5780_CLASS 0x04000000
#define TG3_FLG2_HW_TSO_2 0x08000000
#define TG3_FLG2_HW_TSO (TG3_FLG2_HW_TSO_1 | TG3_FLG2_HW_TSO_2)
+#define TG3_FLG2_1SHOT_MSI 0x10000000
u32 split_mode_max_reqs;
#define SPLIT_MODE_5704_MAX_REQ 3