tg3: Turn off ASF "driver alive" heartbeats for APE

The ENABLE_ASF flag is set when DASH is enabled on the NIC, but DASH
does not run on the RX CPU.  Instead it runs on the APE.
Consequently, the driver does not need to send "driver alive" updates
to the RX CPU when the APE is present.

Signed-off-by: Matt Carlson <mcarlson@broadcom.com>
Signed-off-by: Michael Chan <mchan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/tg3.c b/drivers/net/tg3.c
index 0ebf2ff60c4b59183a0e6f390f839046ea0edc01..e952b91ca2ac52fe1b000e781b81934f06ea80db 100644 (file)
--- a/drivers/net/tg3.c
+++ b/drivers/net/tg3.c
@@ -7862,7 +7862,8 @@ static void tg3_timer(unsigned long __opaque)
         * resets.
         */
        if (!--tp->asf_counter) {
-               if (tp->tg3_flags & TG3_FLAG_ENABLE_ASF) {
+               if ((tp->tg3_flags & TG3_FLAG_ENABLE_ASF) &&
+                   !(tp->tg3_flags3 & TG3_FLG3_ENABLE_APE)) {
                        u32 val;
 
                        tg3_wait_for_event_ack(tp);