ice: implement netdevice ops for SF representor

Subfunction port representor needs the basic netdevice ops to work
correctly. Create them.

Reviewed-by: Wojciech Drewek <wojciech.drewek@intel.com>
Reviewed-by: Jiri Pirko <jiri@nvidia.com>
Reviewed-by: Simon Horman <horms@kernel.org>
Signed-off-by: Michal Swiatkowski <michal.swiatkowski@linux.intel.com>
Tested-by: Rafal Romanowski <rafal.romanowski@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>

Author: Michal Swiatkowski

drivers/net/ethernet/intel/ice/ice_repr.c

@@ -59,12 +59,13 @@ static void
 ice_repr_get_stats64(struct net_device *netdev, struct rtnl_link_stats64 *stats)
 {
 	struct ice_netdev_priv *np = netdev_priv(netdev);
+	struct ice_repr *repr = np->repr;
 	struct ice_eth_stats *eth_stats;
 	struct ice_vsi *vsi;
 
-	if (ice_is_vf_disabled(np->repr->vf))
+	if (repr->ops.ready(repr))
 		return;
-	vsi = np->repr->src_vsi;
+	vsi = repr->src_vsi;
 
 	ice_update_vsi_stats(vsi);
 	eth_stats = &vsi->eth_stats;
@@ -93,7 +94,7 @@ struct ice_repr *ice_netdev_to_repr(const struct net_device *netdev)
 }
 
 /**
- * ice_repr_open - Enable port representor's network interface
+ * ice_repr_vf_open - Enable port representor's network interface
  * @netdev: network interface device structure
  *
  * The open entry point is called when a port representor's network
@@ -102,7 +103,7 @@ struct ice_repr *ice_netdev_to_repr(const struct net_device *netdev)
  *
  * Returns 0 on success
  */
-static int ice_repr_open(struct net_device *netdev)
+static int ice_repr_vf_open(struct net_device *netdev)
 {
 	struct ice_repr *repr = ice_netdev_to_repr(netdev);
 	struct ice_vf *vf;
@@ -118,8 +119,16 @@ static int ice_repr_open(struct net_device *netdev)
 	return 0;
 }
 
+static int ice_repr_sf_open(struct net_device *netdev)
+{
+	netif_carrier_on(netdev);
+	netif_tx_start_all_queues(netdev);
+
+	return 0;
+}
+
 /**
- * ice_repr_stop - Disable port representor's network interface
+ * ice_repr_vf_stop - Disable port representor's network interface
  * @netdev: network interface device structure
  *
  * The stop entry point is called when a port representor's network
@@ -128,7 +137,7 @@ static int ice_repr_open(struct net_device *netdev)
  *
  * Returns 0 on success
  */
-static int ice_repr_stop(struct net_device *netdev)
+static int ice_repr_vf_stop(struct net_device *netdev)
 {
 	struct ice_repr *repr = ice_netdev_to_repr(netdev);
 	struct ice_vf *vf;
@@ -144,6 +153,14 @@ static int ice_repr_stop(struct net_device *netdev)
 	return 0;
 }
 
+static int ice_repr_sf_stop(struct net_device *netdev)
+{
+	netif_carrier_off(netdev);
+	netif_tx_stop_all_queues(netdev);
+
+	return 0;
+}
+
 /**
  * ice_repr_sp_stats64 - get slow path stats for port representor
  * @dev: network interface device structure
@@ -245,10 +262,20 @@ ice_repr_setup_tc(struct net_device *netdev, enum tc_setup_type type,
 	}
 }
 
-static const struct net_device_ops ice_repr_netdev_ops = {
+static const struct net_device_ops ice_repr_vf_netdev_ops = {
+	.ndo_get_stats64 = ice_repr_get_stats64,
+	.ndo_open = ice_repr_vf_open,
+	.ndo_stop = ice_repr_vf_stop,
+	.ndo_start_xmit = ice_eswitch_port_start_xmit,
+	.ndo_setup_tc = ice_repr_setup_tc,
+	.ndo_has_offload_stats = ice_repr_ndo_has_offload_stats,
+	.ndo_get_offload_stats = ice_repr_ndo_get_offload_stats,
+};
+
+static const struct net_device_ops ice_repr_sf_netdev_ops = {
 	.ndo_get_stats64 = ice_repr_get_stats64,
-	.ndo_open = ice_repr_open,
-	.ndo_stop = ice_repr_stop,
+	.ndo_open = ice_repr_sf_open,
+	.ndo_stop = ice_repr_sf_stop,
 	.ndo_start_xmit = ice_eswitch_port_start_xmit,
 	.ndo_setup_tc = ice_repr_setup_tc,
 	.ndo_has_offload_stats = ice_repr_ndo_has_offload_stats,
@@ -261,18 +288,20 @@ static const struct net_device_ops ice_repr_netdev_ops = {
  */
 bool ice_is_port_repr_netdev(const struct net_device *netdev)
 {
-	return netdev && (netdev->netdev_ops == &ice_repr_netdev_ops);
+	return netdev && (netdev->netdev_ops == &ice_repr_vf_netdev_ops ||
+			  netdev->netdev_ops == &ice_repr_sf_netdev_ops);
 }
 
 /**
  * ice_repr_reg_netdev - register port representor netdev
  * @netdev: pointer to port representor netdev
+ * @ops: new ops for netdev
  */
 static int
-ice_repr_reg_netdev(struct net_device *netdev)
+ice_repr_reg_netdev(struct net_device *netdev, const struct net_device_ops *ops)
 {
 	eth_hw_addr_random(netdev);
-	netdev->netdev_ops = &ice_repr_netdev_ops;
+	netdev->netdev_ops = ops;
 	ice_set_ethtool_repr_ops(netdev);
 
 	netdev->hw_features |= NETIF_F_HW_TC;
@@ -386,7 +415,7 @@ static int ice_repr_add_vf(struct ice_repr *repr)
 		return err;
 
 	SET_NETDEV_DEVLINK_PORT(repr->netdev, &vf->devlink_port);
-	err = ice_repr_reg_netdev(repr->netdev);
+	err = ice_repr_reg_netdev(repr->netdev, &ice_repr_vf_netdev_ops);
 	if (err)
 		goto err_netdev;
 
@@ -447,7 +476,7 @@ static int ice_repr_add_sf(struct ice_repr *repr)
 		return err;
 
 	SET_NETDEV_DEVLINK_PORT(repr->netdev, &sf->devlink_port);
-	err = ice_repr_reg_netdev(repr->netdev);
+	err = ice_repr_reg_netdev(repr->netdev, &ice_repr_sf_netdev_ops);
 	if (err)
 		goto err_netdev;