Merge branch 'hns3-misc-fixes'

Salil Mehta says:

====================
Misc bug fixes for HNS3 Ethernet Driver

Fixes to some of the bugs found during system test, internal review
and clean-up
====================

Signed-off-by: David S. Miller <[email protected]>

4 files changed, 76 insertions, 151 deletions

diff --git a/drivers/net/ethernet/hisilicon/hns3/hnae3.h b/drivers/net/ethernet/hisilicon/hns3/hnae3.h
index 37ec1b3286c6..804ea83e1713 100644
--- a/drivers/net/ethernet/hisilicon/hns3/hnae3.h
+++ b/drivers/net/ethernet/hisilicon/hns3/hnae3.h
@@ -273,10 +273,6 @@ struct hnae3_ae_dev {
  *   Map rings to vector
  * unmap_ring_from_vector()
  *   Unmap rings from vector
- * add_tunnel_udp()
- *   Add tunnel information to hardware
- * del_tunnel_udp()
- *   Delete tunnel information from hardware
  * reset_queue()
  *   Reset queue
  * get_fw_version()
@@ -388,9 +384,6 @@ struct hnae3_ae_ops {
 				      int vector_num,
 				      struct hnae3_ring_chain_node *vr_chain);
 
-	int (*add_tunnel_udp)(struct hnae3_handle *handle, u16 port_num);
-	int (*del_tunnel_udp)(struct hnae3_handle *handle, u16 port_num);
-
 	void (*reset_queue)(struct hnae3_handle *handle, u16 queue_id);
 	u32 (*get_fw_version)(struct hnae3_handle *handle);
 	void (*get_mdix_mode)(struct hnae3_handle *handle,
diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3_enet.c b/drivers/net/ethernet/hisilicon/hns3/hns3_enet.c
index 729bcab947df..4031174181a0 100644
--- a/drivers/net/ethernet/hisilicon/hns3/hns3_enet.c
+++ b/drivers/net/ethernet/hisilicon/hns3/hns3_enet.c
@@ -1244,93 +1244,6 @@ static void hns3_nic_get_stats64(struct net_device *netdev,
 	stats->tx_compressed = netdev->stats.tx_compressed;
 }
 
-static void hns3_add_tunnel_port(struct net_device *netdev, u16 port,
-				 enum hns3_udp_tnl_type type)
-{
-	struct hns3_nic_priv *priv = netdev_priv(netdev);
-	struct hns3_udp_tunnel *udp_tnl = &priv->udp_tnl[type];
-	struct hnae3_handle *h = priv->ae_handle;
-
-	if (udp_tnl->used && udp_tnl->dst_port == port) {
-		udp_tnl->used++;
-		return;
-	}
-
-	if (udp_tnl->used) {
-		netdev_warn(netdev,
-			    "UDP tunnel [%d], port [%d] offload\n", type, port);
-		return;
-	}
-
-	udp_tnl->dst_port = port;
-	udp_tnl->used = 1;
-	/* TBD send command to hardware to add port */
-	if (h->ae_algo->ops->add_tunnel_udp)
-		h->ae_algo->ops->add_tunnel_udp(h, port);
-}
-
-static void hns3_del_tunnel_port(struct net_device *netdev, u16 port,
-				 enum hns3_udp_tnl_type type)
-{
-	struct hns3_nic_priv *priv = netdev_priv(netdev);
-	struct hns3_udp_tunnel *udp_tnl = &priv->udp_tnl[type];
-	struct hnae3_handle *h = priv->ae_handle;
-
-	if (!udp_tnl->used || udp_tnl->dst_port != port) {
-		netdev_warn(netdev,
-			    "Invalid UDP tunnel port %d\n", port);
-		return;
-	}
-
-	udp_tnl->used--;
-	if (udp_tnl->used)
-		return;
-
-	udp_tnl->dst_port = 0;
-	/* TBD send command to hardware to del port  */
-	if (h->ae_algo->ops->del_tunnel_udp)
-		h->ae_algo->ops->del_tunnel_udp(h, port);
-}
-
-/* hns3_nic_udp_tunnel_add - Get notifiacetion about UDP tunnel ports
- * @netdev: This physical ports's netdev
- * @ti: Tunnel information
- */
-static void hns3_nic_udp_tunnel_add(struct net_device *netdev,
-				    struct udp_tunnel_info *ti)
-{
-	u16 port_n = ntohs(ti->port);
-
-	switch (ti->type) {
-	case UDP_TUNNEL_TYPE_VXLAN:
-		hns3_add_tunnel_port(netdev, port_n, HNS3_UDP_TNL_VXLAN);
-		break;
-	case UDP_TUNNEL_TYPE_GENEVE:
-		hns3_add_tunnel_port(netdev, port_n, HNS3_UDP_TNL_GENEVE);
-		break;
-	default:
-		netdev_err(netdev, "unsupported tunnel type %d\n", ti->type);
-		break;
-	}
-}
-
-static void hns3_nic_udp_tunnel_del(struct net_device *netdev,
-				    struct udp_tunnel_info *ti)
-{
-	u16 port_n = ntohs(ti->port);
-
-	switch (ti->type) {
-	case UDP_TUNNEL_TYPE_VXLAN:
-		hns3_del_tunnel_port(netdev, port_n, HNS3_UDP_TNL_VXLAN);
-		break;
-	case UDP_TUNNEL_TYPE_GENEVE:
-		hns3_del_tunnel_port(netdev, port_n, HNS3_UDP_TNL_GENEVE);
-		break;
-	default:
-		break;
-	}
-}
-
 static int hns3_setup_tc(struct net_device *netdev, void *type_data)
 {
 	struct tc_mqprio_qopt_offload *mqprio_qopt = type_data;
@@ -1569,8 +1482,6 @@ static const struct net_device_ops hns3_nic_netdev_ops = {
 	.ndo_get_stats64	= hns3_nic_get_stats64,
 	.ndo_setup_tc		= hns3_nic_setup_tc,
 	.ndo_set_rx_mode	= hns3_nic_set_rx_mode,
-	.ndo_udp_tunnel_add	= hns3_nic_udp_tunnel_add,
-	.ndo_udp_tunnel_del	= hns3_nic_udp_tunnel_del,
 	.ndo_vlan_rx_add_vid	= hns3_vlan_rx_add_vid,
 	.ndo_vlan_rx_kill_vid	= hns3_vlan_rx_kill_vid,
 	.ndo_set_vf_vlan	= hns3_ndo_set_vf_vlan,
@@ -3046,13 +2957,13 @@ int hns3_uninit_all_ring(struct hns3_nic_priv *priv)
 }
 
 /* Set mac addr if it is configured. or leave it to the AE driver */
-static void hns3_init_mac_addr(struct net_device *netdev)
+static void hns3_init_mac_addr(struct net_device *netdev, bool init)
 {
 	struct hns3_nic_priv *priv = netdev_priv(netdev);
 	struct hnae3_handle *h = priv->ae_handle;
 	u8 mac_addr_temp[ETH_ALEN];
 
-	if (h->ae_algo->ops->get_mac_addr) {
+	if (h->ae_algo->ops->get_mac_addr && init) {
 		h->ae_algo->ops->get_mac_addr(h, mac_addr_temp);
 		ether_addr_copy(netdev->dev_addr, mac_addr_temp);
 	}
@@ -3106,7 +3017,7 @@ static int hns3_client_init(struct hnae3_handle *handle)
 	handle->kinfo.netdev = netdev;
 	handle->priv = (void *)priv;
 
-	hns3_init_mac_addr(netdev);
+	hns3_init_mac_addr(netdev, true);
 
 	hns3_set_default_feature(netdev);
 
@@ -3292,9 +3203,35 @@ static void hns3_recover_hw_addr(struct net_device *ndev)
 		hns3_nic_mc_sync(ndev, ha->addr);
 }
 
-static void hns3_drop_skb_data(struct hns3_enet_ring *ring, struct sk_buff *skb)
+static void hns3_clear_tx_ring(struct hns3_enet_ring *ring)
 {
-	dev_kfree_skb_any(skb);
+	if (!HNAE3_IS_TX_RING(ring))
+		return;
+
+	while (ring->next_to_clean != ring->next_to_use) {
+		hns3_free_buffer_detach(ring, ring->next_to_clean);
+		ring_ptr_move_fw(ring, next_to_clean);
+	}
+}
+
+static void hns3_clear_rx_ring(struct hns3_enet_ring *ring)
+{
+	if (HNAE3_IS_TX_RING(ring))
+		return;
+
+	while (ring->next_to_use != ring->next_to_clean) {
+		/* When a buffer is not reused, it's memory has been
+		 * freed in hns3_handle_rx_bd or will be freed by
+		 * stack, so only need to unmap the buffer here.
+		 */
+		if (!ring->desc_cb[ring->next_to_use].reuse_flag) {
+			hns3_unmap_buffer(ring,
+					  &ring->desc_cb[ring->next_to_use]);
+			ring->desc_cb[ring->next_to_use].dma = 0;
+		}
+
+		ring_ptr_move_fw(ring, next_to_use);
+	}
 }
 
 static void hns3_clear_all_ring(struct hnae3_handle *h)
@@ -3308,13 +3245,13 @@ static void hns3_clear_all_ring(struct hnae3_handle *h)
 		struct hns3_enet_ring *ring;
 
 		ring = priv->ring_data[i].ring;
-		hns3_clean_tx_ring(ring, ring->desc_num);
+		hns3_clear_tx_ring(ring);
 		dev_queue = netdev_get_tx_queue(ndev,
 						priv->ring_data[i].queue_index);
 		netdev_tx_reset_queue(dev_queue);
 
 		ring = priv->ring_data[i + h->kinfo.num_tqps].ring;
-		hns3_clean_rx_ring(ring, ring->desc_num, hns3_drop_skb_data);
+		hns3_clear_rx_ring(ring);
 	}
 }
 
@@ -3353,7 +3290,7 @@ static int hns3_reset_notify_init_enet(struct hnae3_handle *handle)
 	struct hns3_nic_priv *priv = netdev_priv(netdev);
 	int ret;
 
-	hns3_init_mac_addr(netdev);
+	hns3_init_mac_addr(netdev, false);
 	hns3_nic_set_rx_mode(netdev);
 	hns3_recover_hw_addr(netdev);
 
diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3_ethtool.c b/drivers/net/ethernet/hisilicon/hns3/hns3_ethtool.c
index eb3c34f3cf87..c16bb6cb0564 100644
--- a/drivers/net/ethernet/hisilicon/hns3/hns3_ethtool.c
+++ b/drivers/net/ethernet/hisilicon/hns3/hns3_ethtool.c
@@ -74,7 +74,7 @@ struct hns3_link_mode_mapping {
 	u32 ethtool_link_mode;
 };
 
-static int hns3_lp_setup(struct net_device *ndev, enum hnae3_loop loop)
+static int hns3_lp_setup(struct net_device *ndev, enum hnae3_loop loop, bool en)
 {
 	struct hnae3_handle *h = hns3_get_handle(ndev);
 	int ret;
@@ -85,11 +85,7 @@ static int hns3_lp_setup(struct net_device *ndev, enum hnae3_loop loop)
 
 	switch (loop) {
 	case HNAE3_MAC_INTER_LOOP_MAC:
-		ret = h->ae_algo->ops->set_loopback(h, loop, true);
-		break;
-	case HNAE3_MAC_LOOP_NONE:
-		ret = h->ae_algo->ops->set_loopback(h,
-			HNAE3_MAC_INTER_LOOP_MAC, false);
+		ret = h->ae_algo->ops->set_loopback(h, loop, en);
 		break;
 	default:
 		ret = -ENOTSUPP;
@@ -99,10 +95,7 @@ static int hns3_lp_setup(struct net_device *ndev, enum hnae3_loop loop)
 	if (ret)
 		return ret;
 
-	if (loop == HNAE3_MAC_LOOP_NONE)
-		h->ae_algo->ops->set_promisc_mode(h, ndev->flags & IFF_PROMISC);
-	else
-		h->ae_algo->ops->set_promisc_mode(h, 1);
+	h->ae_algo->ops->set_promisc_mode(h, en);
 
 	return ret;
 }
@@ -122,13 +115,13 @@ static int hns3_lp_up(struct net_device *ndev, enum hnae3_loop loop_mode)
 		return ret;
 	}
 
-	ret = hns3_lp_setup(ndev, loop_mode);
+	ret = hns3_lp_setup(ndev, loop_mode, true);
 	usleep_range(10000, 20000);
 
 	return ret;
 }
 
-static int hns3_lp_down(struct net_device *ndev)
+static int hns3_lp_down(struct net_device *ndev, enum hnae3_loop loop_mode)
 {
 	struct hnae3_handle *h = hns3_get_handle(ndev);
 	int ret;
@@ -136,7 +129,7 @@ static int hns3_lp_down(struct net_device *ndev)
 	if (!h->ae_algo->ops->stop)
 		return -EOPNOTSUPP;
 
-	ret = hns3_lp_setup(ndev, HNAE3_MAC_LOOP_NONE);
+	ret = hns3_lp_setup(ndev, loop_mode, false);
 	if (ret) {
 		netdev_err(ndev, "lb_setup return error: %d\n", ret);
 		return ret;
@@ -332,7 +325,7 @@ static void hns3_self_test(struct net_device *ndev,
 		data[test_index] = hns3_lp_up(ndev, loop_type);
 		if (!data[test_index]) {
 			data[test_index] = hns3_lp_run_test(ndev, loop_type);
-			hns3_lp_down(ndev);
+			hns3_lp_down(ndev, loop_type);
 		}
 
 		if (data[test_index])
diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c
index 084b90437e23..316ec8427891 100644
--- a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c
+++ b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c
@@ -3682,48 +3682,50 @@ static void hclge_cfg_mac_mode(struct hclge_dev *hdev, bool enable)
 			"mac enable fail, ret =%d.\n", ret);
 }
 
-static int hclge_set_loopback(struct hnae3_handle *handle,
-			      enum hnae3_loop loop_mode, bool en)
+static int hclge_set_mac_loopback(struct hclge_dev *hdev, bool en)
 {
-	struct hclge_vport *vport = hclge_get_vport(handle);
 	struct hclge_config_mac_mode_cmd *req;
-	struct hclge_dev *hdev = vport->back;
 	struct hclge_desc desc;
 	u32 loop_en;
 	int ret;
 
-	switch (loop_mode) {
-	case HNAE3_MAC_INTER_LOOP_MAC:
-		req = (struct hclge_config_mac_mode_cmd *)&desc.data[0];
-		/* 1 Read out the MAC mode config at first */
-		hclge_cmd_setup_basic_desc(&desc,
-					   HCLGE_OPC_CONFIG_MAC_MODE,
-					   true);
-		ret = hclge_cmd_send(&hdev->hw, &desc, 1);
-		if (ret) {
-			dev_err(&hdev->pdev->dev,
-				"mac loopback get fail, ret =%d.\n",
-				ret);
-			return ret;
-		}
+	req = (struct hclge_config_mac_mode_cmd *)&desc.data[0];
+	/* 1 Read out the MAC mode config at first */
+	hclge_cmd_setup_basic_desc(&desc, HCLGE_OPC_CONFIG_MAC_MODE, true);
+	ret = hclge_cmd_send(&hdev->hw, &desc, 1);
+	if (ret) {
+		dev_err(&hdev->pdev->dev,
+			"mac loopback get fail, ret =%d.\n", ret);
+		return ret;
+	}
 
-		/* 2 Then setup the loopback flag */
-		loop_en = le32_to_cpu(req->txrx_pad_fcs_loop_en);
-		if (en)
-			hnae_set_bit(loop_en, HCLGE_MAC_APP_LP_B, 1);
-		else
-			hnae_set_bit(loop_en, HCLGE_MAC_APP_LP_B, 0);
+	/* 2 Then setup the loopback flag */
+	loop_en = le32_to_cpu(req->txrx_pad_fcs_loop_en);
+	hnae_set_bit(loop_en, HCLGE_MAC_APP_LP_B, en ? 1 : 0);
 
-		req->txrx_pad_fcs_loop_en = cpu_to_le32(loop_en);
+	req->txrx_pad_fcs_loop_en = cpu_to_le32(loop_en);
 
-		/* 3 Config mac work mode with loopback flag
-		 * and its original configure parameters
-		 */
-		hclge_cmd_reuse_desc(&desc, false);
-		ret = hclge_cmd_send(&hdev->hw, &desc, 1);
-		if (ret)
-			dev_err(&hdev->pdev->dev,
-				"mac loopback set fail, ret =%d.\n", ret);
+	/* 3 Config mac work mode with loopback flag
+	 * and its original configure parameters
+	 */
+	hclge_cmd_reuse_desc(&desc, false);
+	ret = hclge_cmd_send(&hdev->hw, &desc, 1);
+	if (ret)
+		dev_err(&hdev->pdev->dev,
+			"mac loopback set fail, ret =%d.\n", ret);
+	return ret;
+}
+
+static int hclge_set_loopback(struct hnae3_handle *handle,
+			      enum hnae3_loop loop_mode, bool en)
+{
+	struct hclge_vport *vport = hclge_get_vport(handle);
+	struct hclge_dev *hdev = vport->back;
+	int ret;
+
+	switch (loop_mode) {
+	case HNAE3_MAC_INTER_LOOP_MAC:
+		ret = hclge_set_mac_loopback(hdev, en);
 		break;
 	default:
 		ret = -ENOTSUPP;