[TG3]: Reset chip when changing MAC address

Do the full chip reset when changing MAC address if ASF is enabled.

ASF sometimes uses a different MAC address than the driver. Without
the reset, the ASF MAC address may be overwritten when the driver's
MAC address is changed.

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 a307340..0ccfb63 100644 (file)
--- a/drivers/net/tg3.c
+++ b/drivers/net/tg3.c
@@ -5732,9 +5732,23 @@ static int tg3_set_mac_addr(struct net_device *dev, void *p)
        if (!netif_running(dev))
                return 0;
 
-       spin_lock_bh(&tp->lock);
-       __tg3_set_mac_addr(tp);
-       spin_unlock_bh(&tp->lock);
+       if (tp->tg3_flags & TG3_FLAG_ENABLE_ASF) {
+               /* Reset chip so that ASF can re-init any MAC addresses it
+                * needs.
+                */
+               tg3_netif_stop(tp);
+               tg3_full_lock(tp, 1);
+
+               tg3_halt(tp, RESET_KIND_SHUTDOWN, 1);
+               tg3_init_hw(tp);
+
+               tg3_netif_start(tp);
+               tg3_full_unlock(tp);
+       } else {
+               spin_lock_bh(&tp->lock);
+               __tg3_set_mac_addr(tp);
+               spin_unlock_bh(&tp->lock);
+       }
 
        return 0;
 }