net: bnx2x: convert to hw_features

Since ndo_fix_features callback is postponing features change when
bp->recovery_state != BNX2X_RECOVERY_DONE, netdev_update_features()
has to be called again when this condition changes. Previously,
ethtool_ops->set_flags callback returned -EBUSY in that case
(it's not possible in the new model).

Signed-off-by: Michał Mirosław <mirq-linux@rere.qmqm.pl>

v5: - don't delay set_features, as it's rtnl_locked - same as recovery process
v4: - complete bp->rx_csum -> NETIF_F_RXCSUM conversion
    - add check for failed ndo_set_features in ndo_open callback
v3: - include NETIF_F_LRO in hw_features
    - don't call netdev_update_features() if bnx2x_nic_load() failed
v2: - comment in ndo_fix_features callback
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/drivers/net/bnx2x/bnx2x_cmn.h b/drivers/net/bnx2x/bnx2x_cmn.h
index 775fef0..1cdab69 100644
--- a/drivers/net/bnx2x/bnx2x_cmn.h
+++ b/drivers/net/bnx2x/bnx2x_cmn.h
@@ -431,6 +431,9 @@
  */
 int bnx2x_change_mtu(struct net_device *dev, int new_mtu);
 
+u32 bnx2x_fix_features(struct net_device *dev, u32 features);
+int bnx2x_set_features(struct net_device *dev, u32 features);
+
 /**
  * tx timeout netdev callback
  *