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>

1 files changed, 2 insertions, 1 deletions

diff --git a/drivers/net/tg3.c b/drivers/net/tg3.c
index 0ebf2ff60c4b..e952b91ca2ac 100644
--- 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);