net: hns3: Add support for enable/disable flow director

This patch adds switch for flow director with ethtool command
Signed-off-by: NJian Shen <shenjian15@huawei.com>
Signed-off-by: NPeng Li <lipeng321@huawei.com>
Signed-off-by: NSalil Mehta <salil.mehta@huawei.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

drivers/net/ethernet/hisilicon/hns3/hnae3.h

@@ -430,6 +430,7 @@ struct hnae3_ae_ops {
 	int (*get_fd_all_rules)(struct hnae3_handle *handle,
 				struct ethtool_rxnfc *cmd, u32 *rule_locs);
 	int (*restore_fd_rules)(struct hnae3_handle *handle);
+	void (*enable_fd)(struct hnae3_handle *handle, bool enable);
 };
 
 struct hnae3_dcb_ops {

drivers/net/ethernet/hisilicon/hns3/hns3_enet.c

@@ -1285,6 +1285,13 @@ static int hns3_nic_set_features(struct net_device *netdev,
 			return ret;
 	}
 
+	if ((changed & NETIF_F_NTUPLE) && h->ae_algo->ops->enable_fd) {
+		if (features & NETIF_F_NTUPLE)
+			h->ae_algo->ops->enable_fd(h, true);
+		else
+			h->ae_algo->ops->enable_fd(h, false);
+	}
+
 	netdev->features = features;
 	return 0;
 }
@@ -1770,8 +1777,14 @@ static void hns3_set_default_feature(struct net_device *netdev)
 		NETIF_F_GSO_GRE_CSUM | NETIF_F_GSO_UDP_TUNNEL |
 		NETIF_F_GSO_UDP_TUNNEL_CSUM | NETIF_F_SCTP_CRC;
 
-	if (pdev->revision != 0x20)
+	if (pdev->revision >= 0x21) {
 		netdev->hw_features |= NETIF_F_HW_VLAN_CTAG_FILTER;
+
+		if (!(h->flags & HNAE3_SUPPORT_VF)) {
+			netdev->hw_features |= NETIF_F_NTUPLE;
+			netdev->features |= NETIF_F_NTUPLE;
+		}
+	}
 }
 
 static int hns3_alloc_buffer(struct hns3_enet_ring *ring,

drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c

@@ -4597,6 +4597,18 @@ static int hclge_get_all_rules(struct hnae3_handle *handle,
 	return 0;
 }
 
+static void hclge_enable_fd(struct hnae3_handle *handle, bool enable)
+{
+	struct hclge_vport *vport = hclge_get_vport(handle);
+	struct hclge_dev *hdev = vport->back;
+
+	hdev->fd_cfg.fd_en = enable;
+	if (!enable)
+		hclge_del_all_fd_entries(handle, false);
+	else
+		hclge_restore_fd_entries(handle);
+}
+
 static void hclge_cfg_mac_mode(struct hclge_dev *hdev, bool enable)
 {
 	struct hclge_desc desc;
@@ -7337,6 +7349,7 @@ static const struct hnae3_ae_ops hclge_ops = {
 	.get_fd_rule_info = hclge_get_fd_rule_info,
 	.get_fd_all_rules = hclge_get_all_rules,
 	.restore_fd_rules = hclge_restore_fd_entries,
+	.enable_fd = hclge_enable_fd,
 };
 
 static struct hnae3_ae_algo ae_algo = {