be2net: Fix traffic stall INTx mode

EQ is getting armed wrongly in INTx mode as INTx interrupt is taking
some time to deassert. This can cause another interrupt while NAPI is
scheduled and scheduling a NAPI in interrupt does not take effect.
This causes interrupt to be missed and traffic stalls. Fixing this by
preventing wrong arming of EQ.

Signed-off-by: Padmanabh Ratnakar <padmanabh.ratnakar@emulex.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/ethernet/emulex/benet/be_main.c b/drivers/net/ethernet/emulex/benet/be_main.c
index a9a11d426f08744fe9ee5cd0fc97ea5ad9d02823..9d42fab6d4460430810893b9ac9da2b5570d8f44 100644 (file)
--- a/drivers/net/ethernet/emulex/benet/be_main.c
+++ b/drivers/net/ethernet/emulex/benet/be_main.c
@@ -1571,7 +1571,9 @@ static int event_handle(struct be_eq_obj *eqo)
        if (!num)
                rearm = true;
 
-       be_eq_notify(eqo->adapter, eqo->q.id, rearm, true, num);
+       if (num || msix_enabled(eqo->adapter))
+               be_eq_notify(eqo->adapter, eqo->q.id, rearm, true, num);
+
        if (num)
                napi_schedule(&eqo->napi);