net/mlx5e: TC, Extract indr setup block checks to function

In preparation for next patch which will add new check
if device block can be setup, extract all existing checks
to function to make it more readable and maintainable.
Signed-off-by: Maor Dickman <maord@nvidia.com>
Reviewed-by: Roi Dayan <roid@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
Link: https://lore.kernel.org/r/20230314054234.267365-14-saeed@kernel.orgSigned-off-by: Jakub Kicinski <kuba@kernel.org>

drivers/net/ethernet/mellanox/mlx5/core/en/rep/tc.c

@@ -426,39 +426,53 @@ static bool mlx5e_rep_macvlan_mode_supported(const struct net_device *dev)
 	return macvlan->mode == MACVLAN_MODE_PASSTHRU;
 }
 
-static int
-mlx5e_rep_indr_setup_block(struct net_device *netdev, struct Qdisc *sch,
-			   struct mlx5e_rep_priv *rpriv,
-			   struct flow_block_offload *f,
-			   flow_setup_cb_t *setup_cb,
-			   void *data,
-			   void (*cleanup)(struct flow_block_cb *block_cb))
+static bool
+mlx5e_rep_check_indr_block_supported(struct mlx5e_rep_priv *rpriv,
+				     struct net_device *netdev,
+				     struct flow_block_offload *f)
 {
 	struct mlx5e_priv *priv = netdev_priv(rpriv->netdev);
 	struct mlx5_eswitch *esw = priv->mdev->priv.eswitch;
-	bool is_ovs_int_port = netif_is_ovs_master(netdev);
-	struct mlx5e_rep_indr_block_priv *indr_priv;
-	struct flow_block_cb *block_cb;
 
-	if (!mlx5e_tc_tun_device_to_offload(priv, netdev) &&
-	    !(is_vlan_dev(netdev) && vlan_dev_real_dev(netdev) == rpriv->netdev) &&
-	    !is_ovs_int_port) {
-		if (!(netif_is_macvlan(netdev) && macvlan_dev_real_dev(netdev) == rpriv->netdev))
-			return -EOPNOTSUPP;
+	if (f->binder_type != FLOW_BLOCK_BINDER_TYPE_CLSACT_INGRESS &&
+	    f->binder_type != FLOW_BLOCK_BINDER_TYPE_CLSACT_EGRESS)
+		return false;
+
+	if (mlx5e_tc_tun_device_to_offload(priv, netdev))
+		return true;
+
+	if (is_vlan_dev(netdev) && vlan_dev_real_dev(netdev) == rpriv->netdev)
+		return true;
+
+	if (netif_is_macvlan(netdev)) {
 		if (!mlx5e_rep_macvlan_mode_supported(netdev)) {
 			netdev_warn(netdev, "Offloading ingress filter is supported only with macvlan passthru mode");
-			return -EOPNOTSUPP;
+			return false;
 		}
+
+		if (macvlan_dev_real_dev(netdev) == rpriv->netdev)
+			return true;
 	}
 
-	if (f->binder_type != FLOW_BLOCK_BINDER_TYPE_CLSACT_INGRESS &&
-	    f->binder_type != FLOW_BLOCK_BINDER_TYPE_CLSACT_EGRESS)
-		return -EOPNOTSUPP;
+	if (netif_is_ovs_master(netdev) && f->binder_type == FLOW_BLOCK_BINDER_TYPE_CLSACT_EGRESS &&
+	    mlx5e_tc_int_port_supported(esw))
+		return true;
 
-	if (f->binder_type == FLOW_BLOCK_BINDER_TYPE_CLSACT_EGRESS && !is_ovs_int_port)
-		return -EOPNOTSUPP;
+	return false;
+}
+
+static int
+mlx5e_rep_indr_setup_block(struct net_device *netdev, struct Qdisc *sch,
+			   struct mlx5e_rep_priv *rpriv,
+			   struct flow_block_offload *f,
+			   flow_setup_cb_t *setup_cb,
+			   void *data,
+			   void (*cleanup)(struct flow_block_cb *block_cb))
+{
+	struct mlx5e_rep_indr_block_priv *indr_priv;
+	struct flow_block_cb *block_cb;
 
-	if (is_ovs_int_port && !mlx5e_tc_int_port_supported(esw))
+	if (!mlx5e_rep_check_indr_block_supported(rpriv, netdev, f))
 		return -EOPNOTSUPP;
 
 	f->unlocked_driver_cb = true;