Merge branch 'net-hns3-Add-vf-mtu-support'

Salil Mehta says:

====================
net: hns3: Add vf mtu support

This patchset adds vf mtu support to HNS3 driver.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>

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

@@ -36,6 +36,9 @@ enum HCLGE_MBX_OPCODE {
 	HCLGE_MBX_BIND_FUNC_QUEUE,	/* (VF -> PF) bind function and queue */
 	HCLGE_MBX_GET_LINK_STATUS,	/* (VF -> PF) get link status */
 	HCLGE_MBX_QUEUE_RESET,		/* (VF -> PF) reset queue */
+	HCLGE_MBX_KEEP_ALIVE,		/* (VF -> PF) send keep alive cmd */
+	HCLGE_MBX_SET_ALIVE,		/* (VF -> PF) set alive state */
+	HCLGE_MBX_SET_MTU,		/* (VF -> PF) set mtu */
 };
 
 /* below are per-VF mac-vlan subcodes */

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

@@ -210,6 +210,10 @@ struct hnae3_ae_dev {
  *   Enable the hardware
  * stop()
  *   Disable the hardware
+ * start_client()
+ *   Inform the hclge that client has been started
+ * stop_client()
+ *   Inform the hclge that client has been stopped
  * get_status()
  *   Get the carrier state of the back channel of the handle, 1 for ok, 0 for
  *   non-ok
@@ -319,6 +323,8 @@ struct hnae3_ae_ops {
 				       struct hnae3_ae_dev *ae_dev);
 	int (*start)(struct hnae3_handle *handle);
 	void (*stop)(struct hnae3_handle *handle);
+	int (*client_start)(struct hnae3_handle *handle);
+	void (*client_stop)(struct hnae3_handle *handle);
 	int (*get_status)(struct hnae3_handle *handle);
 	void (*get_ksettings_an_result)(struct hnae3_handle *handle,
 					u8 *auto_neg, u32 *speed, u8 *duplex);

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

@@ -1573,18 +1573,11 @@ static int hns3_ndo_set_vf_vlan(struct net_device *netdev, int vf, u16 vlan,
 static int hns3_nic_change_mtu(struct net_device *netdev, int new_mtu)
 {
 	struct hnae3_handle *h = hns3_get_handle(netdev);
-	bool if_running = netif_running(netdev);
 	int ret;
 
 	if (!h->ae_algo->ops->set_mtu)
 		return -EOPNOTSUPP;
 
-	/* if this was called with netdev up then bring netdevice down */
-	if (if_running) {
-		(void)hns3_nic_net_stop(netdev);
-		msleep(100);
-	}
-
 	ret = h->ae_algo->ops->set_mtu(h, new_mtu);
 	if (ret)
 		netdev_err(netdev, "failed to change MTU in hardware %d\n",
@@ -1592,10 +1585,6 @@ static int hns3_nic_change_mtu(struct net_device *netdev, int new_mtu)
 	else
 		netdev->mtu = new_mtu;
 
-	/* if the netdev was running earlier, bring it up again */
-	if (if_running && hns3_nic_net_open(netdev))
-		ret = -EINVAL;
-
 	return ret;
 }
 
@@ -3540,6 +3529,22 @@ static void hns3_nic_set_priv_ops(struct net_device *netdev)
 		priv->ops.maybe_stop_tx = hns3_nic_maybe_stop_tx;
 }
 
+static int hns3_client_start(struct hnae3_handle *handle)
+{
+	if (!handle->ae_algo->ops->client_start)
+		return 0;
+
+	return handle->ae_algo->ops->client_start(handle);
+}
+
+static void hns3_client_stop(struct hnae3_handle *handle)
+{
+	if (!handle->ae_algo->ops->client_stop)
+		return;
+
+	handle->ae_algo->ops->client_stop(handle);
+}
+
 static int hns3_client_init(struct hnae3_handle *handle)
 {
 	struct pci_dev *pdev = handle->pdev;
@@ -3607,10 +3612,16 @@ static int hns3_client_init(struct hnae3_handle *handle)
 		goto out_reg_netdev_fail;
 	}
 
+	ret = hns3_client_start(handle);
+	if (ret) {
+		dev_err(priv->dev, "hns3_client_start fail! ret=%d\n", ret);
+			goto out_reg_netdev_fail;
+	}
+
 	hns3_dcbnl_setup(handle);
 
-	/* MTU range: (ETH_MIN_MTU(kernel default) - 9706) */
-	netdev->max_mtu = HNS3_MAX_MTU - (ETH_HLEN + ETH_FCS_LEN + VLAN_HLEN);
+	/* MTU range: (ETH_MIN_MTU(kernel default) - 9702) */
+	netdev->max_mtu = HNS3_MAX_MTU;
 
 	set_bit(HNS3_NIC_STATE_INITED, &priv->state);
 
@@ -3635,6 +3646,8 @@ static void hns3_client_uninit(struct hnae3_handle *handle, bool reset)
 	struct hns3_nic_priv *priv = netdev_priv(netdev);
 	int ret;
 
+	hns3_client_stop(handle);
+
 	hns3_remove_hw_addr(netdev);
 
 	if (netdev->reg_state != NETREG_UNINITIALIZED)

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

@@ -76,7 +76,10 @@ enum hns3_nic_state {
 #define HNS3_RING_MAX_PENDING			32768
 #define HNS3_RING_MIN_PENDING			8
 #define HNS3_RING_BD_MULTIPLE			8
-#define HNS3_MAX_MTU				9728
+/* max frame size of mac */
+#define HNS3_MAC_MAX_FRAME			9728
+#define HNS3_MAX_MTU \
+	(HNS3_MAC_MAX_FRAME - (ETH_HLEN + ETH_FCS_LEN + 2 * VLAN_HLEN))
 
 #define HNS3_BD_SIZE_512_TYPE			0
 #define HNS3_BD_SIZE_1024_TYPE			1

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

@@ -26,7 +26,7 @@
 #define HCLGE_STATS_READ(p, offset) (*((u64 *)((u8 *)(p) + (offset))))
 #define HCLGE_MAC_STATS_FIELD_OFF(f) (offsetof(struct hclge_mac_stats, f))
 
-static int hclge_set_mtu(struct hnae3_handle *handle, int new_mtu);
+static int hclge_set_mac_mtu(struct hclge_dev *hdev, int new_mps);
 static int hclge_init_vlan_config(struct hclge_dev *hdev);
 static int hclge_reset_ae_dev(struct hnae3_ae_dev *ae_dev);
 static int hclge_set_umv_space(struct hclge_dev *hdev, u16 space_size,
@@ -1166,6 +1166,7 @@ static int hclge_alloc_vport(struct hclge_dev *hdev)
 	for (i = 0; i < num_vport; i++) {
 		vport->back = hdev;
 		vport->vport_id = i;
+		vport->mps = HCLGE_MAC_DEFAULT_FRAME;
 
 		if (i == 0)
 			ret = hclge_vport_setup(vport, tqp_main_vport);
@@ -1969,10 +1970,7 @@ static int hclge_get_autoneg(struct hnae3_handle *handle)
 
 static int hclge_mac_init(struct hclge_dev *hdev)
 {
-	struct hnae3_handle *handle = &hdev->vport[0].nic;
-	struct net_device *netdev = handle->kinfo.netdev;
 	struct hclge_mac *mac = &hdev->hw.mac;
-	int mtu;
 	int ret;
 
 	hdev->hw.mac.duplex = HCLGE_MAC_FULL;
@@ -1986,15 +1984,16 @@ static int hclge_mac_init(struct hclge_dev *hdev)
 
 	mac->link = 0;
 
-	if (netdev)
-		mtu = netdev->mtu;
-	else
-		mtu = ETH_DATA_LEN;
+	ret = hclge_set_mac_mtu(hdev, hdev->mps);
+	if (ret) {
+		dev_err(&hdev->pdev->dev, "set mtu failed ret=%d\n", ret);
+		return ret;
+	}
 
-	ret = hclge_set_mtu(handle, mtu);
+	ret = hclge_buffer_alloc(hdev);
 	if (ret)
 		dev_err(&hdev->pdev->dev,
-			"set mtu failed ret=%d\n", ret);
+			"allocate buffer fail, ret=%d\n", ret);
 
 	return ret;
 }
@@ -2913,6 +2912,23 @@ static void hclge_mailbox_service_task(struct work_struct *work)
 	clear_bit(HCLGE_STATE_MBX_HANDLING, &hdev->state);
 }
 
+static void hclge_update_vport_alive(struct hclge_dev *hdev)
+{
+	int i;
+
+	/* start from vport 1 for PF is always alive */
+	for (i = 1; i < hdev->num_alloc_vport; i++) {
+		struct hclge_vport *vport = &hdev->vport[i];
+
+		if (time_after(jiffies, vport->last_active_jiffies + 8 * HZ))
+			clear_bit(HCLGE_VPORT_STATE_ALIVE, &vport->state);
+
+		/* If vf is not alive, set to default value */
+		if (!test_bit(HCLGE_VPORT_STATE_ALIVE, &vport->state))
+			vport->mps = HCLGE_MAC_DEFAULT_FRAME;
+	}
+}
+
 static void hclge_service_task(struct work_struct *work)
 {
 	struct hclge_dev *hdev =
@@ -2925,6 +2941,7 @@ static void hclge_service_task(struct work_struct *work)
 
 	hclge_update_speed_duplex(hdev);
 	hclge_update_link_status(hdev);
+	hclge_update_vport_alive(hdev);
 	hclge_service_complete(hdev);
 }
 
@@ -5210,6 +5227,32 @@ static void hclge_ae_stop(struct hnae3_handle *handle)
 	hclge_update_link_status(hdev);
 }
 
+int hclge_vport_start(struct hclge_vport *vport)
+{
+	set_bit(HCLGE_VPORT_STATE_ALIVE, &vport->state);
+	vport->last_active_jiffies = jiffies;
+	return 0;
+}
+
+void hclge_vport_stop(struct hclge_vport *vport)
+{
+	clear_bit(HCLGE_VPORT_STATE_ALIVE, &vport->state);
+}
+
+static int hclge_client_start(struct hnae3_handle *handle)
+{
+	struct hclge_vport *vport = hclge_get_vport(handle);
+
+	return hclge_vport_start(vport);
+}
+
+static void hclge_client_stop(struct hnae3_handle *handle)
+{
+	struct hclge_vport *vport = hclge_get_vport(handle);
+
+	hclge_vport_stop(vport);
+}
+
 static int hclge_get_mac_vlan_cmd_status(struct hclge_vport *vport,
 					 u16 cmdq_resp, u8  resp_code,
 					 enum hclge_mac_vlan_tbl_opcode op)
@@ -6357,54 +6400,76 @@ int hclge_en_hw_strip_rxvtag(struct hnae3_handle *handle, bool enable)
 	return hclge_set_vlan_rx_offload_cfg(vport);
 }
 
-static int hclge_set_mac_mtu(struct hclge_dev *hdev, int new_mtu)
+static int hclge_set_mac_mtu(struct hclge_dev *hdev, int new_mps)
 {
 	struct hclge_config_max_frm_size_cmd *req;
 	struct hclge_desc desc;
-	int max_frm_size;
-	int ret;
-
-	max_frm_size = new_mtu + ETH_HLEN + ETH_FCS_LEN + VLAN_HLEN;
-
-	if (max_frm_size < HCLGE_MAC_MIN_FRAME ||
-	    max_frm_size > HCLGE_MAC_MAX_FRAME)
-		return -EINVAL;
-
-	max_frm_size = max(max_frm_size, HCLGE_MAC_DEFAULT_FRAME);
 
 	hclge_cmd_setup_basic_desc(&desc, HCLGE_OPC_CONFIG_MAX_FRM_SIZE, false);
 
 	req = (struct hclge_config_max_frm_size_cmd *)desc.data;
-	req->max_frm_size = cpu_to_le16(max_frm_size);
+	req->max_frm_size = cpu_to_le16(new_mps);
 	req->min_frm_size = HCLGE_MAC_MIN_FRAME;
 
-	ret = hclge_cmd_send(&hdev->hw, &desc, 1);
-	if (ret)
-		dev_err(&hdev->pdev->dev, "set mtu fail, ret =%d.\n", ret);
-	else
-		hdev->mps = max_frm_size;
-
-	return ret;
+	return hclge_cmd_send(&hdev->hw, &desc, 1);
 }
 
 static int hclge_set_mtu(struct hnae3_handle *handle, int new_mtu)
 {
 	struct hclge_vport *vport = hclge_get_vport(handle);
+
+	return hclge_set_vport_mtu(vport, new_mtu);
+}
+
+int hclge_set_vport_mtu(struct hclge_vport *vport, int new_mtu)
+{
 	struct hclge_dev *hdev = vport->back;
-	int ret;
+	int i, max_frm_size, ret = 0;
+
+	max_frm_size = new_mtu + ETH_HLEN + ETH_FCS_LEN + 2 * VLAN_HLEN;
+	if (max_frm_size < HCLGE_MAC_MIN_FRAME ||
+	    max_frm_size > HCLGE_MAC_MAX_FRAME)
+		return -EINVAL;
+
+	max_frm_size = max(max_frm_size, HCLGE_MAC_DEFAULT_FRAME);
+	mutex_lock(&hdev->vport_lock);
+	/* VF's mps must fit within hdev->mps */
+	if (vport->vport_id && max_frm_size > hdev->mps) {
+		mutex_unlock(&hdev->vport_lock);
+		return -EINVAL;
+	} else if (vport->vport_id) {
+		vport->mps = max_frm_size;
+		mutex_unlock(&hdev->vport_lock);
+		return 0;
+	}
 
-	ret = hclge_set_mac_mtu(hdev, new_mtu);
+	/* PF's mps must be greater then VF's mps */
+	for (i = 1; i < hdev->num_alloc_vport; i++)
+		if (max_frm_size < hdev->vport[i].mps) {
+			mutex_unlock(&hdev->vport_lock);
+			return -EINVAL;
+		}
+
+	hclge_notify_client(hdev, HNAE3_DOWN_CLIENT);
+
+	ret = hclge_set_mac_mtu(hdev, max_frm_size);
 	if (ret) {
 		dev_err(&hdev->pdev->dev,
 			"Change mtu fail, ret =%d\n", ret);
-		return ret;
+		goto out;
 	}
 
+	hdev->mps = max_frm_size;
+	vport->mps = max_frm_size;
+
 	ret = hclge_buffer_alloc(hdev);
 	if (ret)
 		dev_err(&hdev->pdev->dev,
 			"Allocate buffer fail, ret =%d\n", ret);
 
+out:
+	hclge_notify_client(hdev, HNAE3_UP_CLIENT);
+	mutex_unlock(&hdev->vport_lock);
 	return ret;
 }
 
@@ -7021,6 +7086,9 @@ static int hclge_init_ae_dev(struct hnae3_ae_dev *ae_dev)
 	hdev->reset_type = HNAE3_NONE_RESET;
 	hdev->reset_level = HNAE3_FUNC_RESET;
 	ae_dev->priv = hdev;
+	hdev->mps = ETH_FRAME_LEN + ETH_FCS_LEN + 2 * VLAN_HLEN;
+
+	mutex_init(&hdev->vport_lock);
 
 	ret = hclge_pci_init(hdev);
 	if (ret) {
@@ -7197,6 +7265,17 @@ static void hclge_stats_clear(struct hclge_dev *hdev)
 	memset(&hdev->hw_stats, 0, sizeof(hdev->hw_stats));
 }
 
+static void hclge_reset_vport_state(struct hclge_dev *hdev)
+{
+	struct hclge_vport *vport = hdev->vport;
+	int i;
+
+	for (i = 0; i < hdev->num_alloc_vport; i++) {
+		hclge_vport_start(vport);
+		vport++;
+	}
+}
+
 static int hclge_reset_ae_dev(struct hnae3_ae_dev *ae_dev)
 {
 	struct hclge_dev *hdev = ae_dev->priv;
@@ -7282,6 +7361,8 @@ static int hclge_reset_ae_dev(struct hnae3_ae_dev *ae_dev)
 	if (hclge_enable_tm_hw_error(hdev, true))
 		dev_err(&pdev->dev, "failed to enable TM hw error interrupts\n");
 
+	hclge_reset_vport_state(hdev);
+
 	dev_info(&pdev->dev, "Reset done, %s driver initialization finished.\n",
 		 HCLGE_DRIVER_NAME);
 
@@ -7308,6 +7389,7 @@ static void hclge_uninit_ae_dev(struct hnae3_ae_dev *ae_dev)
 	hclge_destroy_cmd_queue(&hdev->hw);
 	hclge_misc_irq_uninit(hdev);
 	hclge_pci_uninit(hdev);
+	mutex_destroy(&hdev->vport_lock);
 	ae_dev->priv = NULL;
 }
 
@@ -7690,6 +7772,8 @@ static const struct hnae3_ae_ops hclge_ops = {
 	.set_loopback = hclge_set_loopback,
 	.start = hclge_ae_start,
 	.stop = hclge_ae_stop,
+	.client_start = hclge_client_start,
+	.client_stop = hclge_client_stop,
 	.get_status = hclge_get_status,
 	.get_ksettings_an_result = hclge_get_ksettings_an_result,
 	.update_speed_duplex_h = hclge_update_speed_duplex_h,

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

@@ -120,7 +120,7 @@ enum HLCGE_PORT_TYPE {
 #define HCLGE_VECTOR0_IMP_RESET_INT_B	1
 
 #define HCLGE_MAC_DEFAULT_FRAME \
-	(ETH_HLEN + ETH_FCS_LEN + VLAN_HLEN + ETH_DATA_LEN)
+	(ETH_HLEN + ETH_FCS_LEN + 2 * VLAN_HLEN + ETH_DATA_LEN)
 #define HCLGE_MAC_MIN_FRAME		64
 #define HCLGE_MAC_MAX_FRAME		9728
 
@@ -678,6 +678,8 @@ struct hclge_dev {
 
 	u32 pkt_buf_size; /* Total pf buf size for tx/rx */
 	u32 mps; /* Max packet size */
+	/* vport_lock protect resource shared by vports */
+	struct mutex vport_lock;
 
 	struct hclge_vlan_type_cfg vlan_type_cfg;
 
@@ -728,6 +730,11 @@ struct hclge_rss_tuple_cfg {
 	u8 ipv6_fragment_en;
 };
 
+enum HCLGE_VPORT_STATE {
+	HCLGE_VPORT_STATE_ALIVE,
+	HCLGE_VPORT_STATE_MAX
+};
+
 struct hclge_vport {
 	u16 alloc_tqps;	/* Allocated Tx/Rx queues */
 
@@ -753,6 +760,10 @@ struct hclge_vport {
 	struct hclge_dev *back;  /* Back reference to associated dev */
 	struct hnae3_handle nic;
 	struct hnae3_handle roce;
+
+	unsigned long state;
+	unsigned long last_active_jiffies;
+	u32 mps; /* Max packet size */
 };
 
 void hclge_promisc_param_init(struct hclge_promisc_param *param, bool en_uc,
@@ -800,4 +811,7 @@ int hclge_reset_tqp(struct hnae3_handle *handle, u16 queue_id);
 void hclge_reset_vf_queue(struct hclge_vport *vport, u16 queue_id);
 int hclge_cfg_flowctrl(struct hclge_dev *hdev);
 int hclge_func_reset_cmd(struct hclge_dev *hdev, int func_id);
+int hclge_vport_start(struct hclge_vport *vport);
+void hclge_vport_stop(struct hclge_vport *vport);
+int hclge_set_vport_mtu(struct hclge_vport *vport, int new_mtu);
 #endif

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

@@ -301,6 +301,21 @@ static int hclge_set_vf_vlan_cfg(struct hclge_vport *vport,
 	return status;
 }
 
+static int hclge_set_vf_alive(struct hclge_vport *vport,
+			      struct hclge_mbx_vf_to_pf_cmd *mbx_req,
+			      bool gen_resp)
+{
+	bool alive = !!mbx_req->msg[2];
+	int ret = 0;
+
+	if (alive)
+		ret = hclge_vport_start(vport);
+	else
+		hclge_vport_stop(vport);
+
+	return ret;
+}
+
 static int hclge_get_vf_tcinfo(struct hclge_vport *vport,
 			       struct hclge_mbx_vf_to_pf_cmd *mbx_req,
 			       bool gen_resp)
@@ -380,6 +395,24 @@ static void hclge_reset_vf(struct hclge_vport *vport,
 	hclge_gen_resp_to_vf(vport, mbx_req, ret, NULL, 0);
 }
 
+static void hclge_vf_keep_alive(struct hclge_vport *vport,
+				struct hclge_mbx_vf_to_pf_cmd *mbx_req)
+{
+	vport->last_active_jiffies = jiffies;
+}
+
+static int hclge_set_vf_mtu(struct hclge_vport *vport,
+			    struct hclge_mbx_vf_to_pf_cmd *mbx_req)
+{
+	int ret;
+	u32 mtu;
+
+	memcpy(&mtu, &mbx_req->msg[2], sizeof(mtu));
+	ret = hclge_set_vport_mtu(vport, mtu);
+
+	return hclge_gen_resp_to_vf(vport, mbx_req, ret, NULL, 0);
+}
+
 static bool hclge_cmd_crq_empty(struct hclge_hw *hw)
 {
 	u32 tail = hclge_read_dev(hw, HCLGE_NIC_CRQ_TAIL_REG);
@@ -457,6 +490,13 @@ void hclge_mbx_handler(struct hclge_dev *hdev)
 					"PF failed(%d) to config VF's VLAN\n",
 					ret);
 			break;
+		case HCLGE_MBX_SET_ALIVE:
+			ret = hclge_set_vf_alive(vport, req, false);
+			if (ret)
+				dev_err(&hdev->pdev->dev,
+					"PF failed(%d) to set VF's ALIVE\n",
+					ret);
+			break;
 		case HCLGE_MBX_GET_QINFO:
 			ret = hclge_get_vf_queue_info(vport, req, true);
 			if (ret)
@@ -484,6 +524,15 @@ void hclge_mbx_handler(struct hclge_dev *hdev)
 		case HCLGE_MBX_RESET:
 			hclge_reset_vf(vport, req);
 			break;
+		case HCLGE_MBX_KEEP_ALIVE:
+			hclge_vf_keep_alive(vport, req);
+			break;
+		case HCLGE_MBX_SET_MTU:
+			ret = hclge_set_vf_mtu(vport, req);
+			if (ret)
+				dev_err(&hdev->pdev->dev,
+					"VF fail(%d) to set mtu\n", ret);
+			break;
 		default:
 			dev_err(&hdev->pdev->dev,
 				"un-supported mailbox message, code = %d\n",

drivers/net/ethernet/hisilicon/hns3/hns3vf/hclgevf_main.c

@@ -1081,6 +1081,14 @@ static int hclgevf_reset_tqp(struct hnae3_handle *handle, u16 queue_id)
 				    2, true, NULL, 0);
 }
 
+static int hclgevf_set_mtu(struct hnae3_handle *handle, int new_mtu)
+{
+	struct hclgevf_dev *hdev = hclgevf_ae_get_hdev(handle);
+
+	return hclgevf_send_mbx_msg(hdev, HCLGE_MBX_SET_MTU, 0, (u8 *)&new_mtu,
+				    sizeof(new_mtu), true, NULL, 0);
+}
+
 static int hclgevf_notify_client(struct hclgevf_dev *hdev,
 				 enum hnae3_reset_notify_type type)
 {
@@ -1515,6 +1523,28 @@ static void hclgevf_mailbox_service_task(struct work_struct *work)
 	clear_bit(HCLGEVF_STATE_MBX_HANDLING, &hdev->state);
 }
 
+static void hclgevf_keep_alive_timer(struct timer_list *t)
+{
+	struct hclgevf_dev *hdev = from_timer(hdev, t, keep_alive_timer);
+
+	schedule_work(&hdev->keep_alive_task);
+	mod_timer(&hdev->keep_alive_timer, jiffies + 2 * HZ);
+}
+
+static void hclgevf_keep_alive_task(struct work_struct *work)
+{
+	struct hclgevf_dev *hdev;
+	u8 respmsg;
+	int ret;
+
+	hdev = container_of(work, struct hclgevf_dev, keep_alive_task);
+	ret = hclgevf_send_mbx_msg(hdev, HCLGE_MBX_KEEP_ALIVE, 0, NULL,
+				   0, false, &respmsg, sizeof(u8));
+	if (ret)
+		dev_err(&hdev->pdev->dev,
+			"VF sends keep alive cmd failed(=%d)\n", ret);
+}
+
 static void hclgevf_service_task(struct work_struct *work)
 {
 	struct hclgevf_dev *hdev;
@@ -1767,6 +1797,38 @@ static void hclgevf_ae_stop(struct hnae3_handle *handle)
 	hclgevf_update_link_status(hdev, 0);
 }
 
+static int hclgevf_set_alive(struct hnae3_handle *handle, bool alive)
+{
+	struct hclgevf_dev *hdev = hclgevf_ae_get_hdev(handle);
+	u8 msg_data;
+
+	msg_data = alive ? 1 : 0;
+	return hclgevf_send_mbx_msg(hdev, HCLGE_MBX_SET_ALIVE,
+				    0, &msg_data, 1, false, NULL, 0);
+}
+
+static int hclgevf_client_start(struct hnae3_handle *handle)
+{
+	struct hclgevf_dev *hdev = hclgevf_ae_get_hdev(handle);
+
+	mod_timer(&hdev->keep_alive_timer, jiffies + 2 * HZ);
+	return hclgevf_set_alive(handle, true);
+}
+
+static void hclgevf_client_stop(struct hnae3_handle *handle)
+{
+	struct hclgevf_dev *hdev = hclgevf_ae_get_hdev(handle);
+	int ret;
+
+	ret = hclgevf_set_alive(handle, false);
+	if (ret)
+		dev_warn(&hdev->pdev->dev,
+			 "%s failed %d\n", __func__, ret);
+
+	del_timer_sync(&hdev->keep_alive_timer);
+	cancel_work_sync(&hdev->keep_alive_task);
+}
+
 static void hclgevf_state_init(struct hclgevf_dev *hdev)
 {
 	/* setup tasks for the MBX */
@@ -2279,6 +2341,7 @@ static void hclgevf_uninit_hdev(struct hclgevf_dev *hdev)
 static int hclgevf_init_ae_dev(struct hnae3_ae_dev *ae_dev)
 {
 	struct pci_dev *pdev = ae_dev->pdev;
+	struct hclgevf_dev *hdev;
 	int ret;
 
 	ret = hclgevf_alloc_hdev(ae_dev);
@@ -2288,10 +2351,16 @@ static int hclgevf_init_ae_dev(struct hnae3_ae_dev *ae_dev)
 	}
 
 	ret = hclgevf_init_hdev(ae_dev->priv);
-	if (ret)
+	if (ret) {
 		dev_err(&pdev->dev, "hclge device initialization failed\n");
-
 		return ret;
+	}
+
+	hdev = ae_dev->priv;
+	timer_setup(&hdev->keep_alive_timer, hclgevf_keep_alive_timer, 0);
+	INIT_WORK(&hdev->keep_alive_task, hclgevf_keep_alive_task);
+
+	return 0;
 }
 
 static void hclgevf_uninit_ae_dev(struct hnae3_ae_dev *ae_dev)
@@ -2413,6 +2482,8 @@ static const struct hnae3_ae_ops hclgevf_ops = {
 	.uninit_client_instance = hclgevf_uninit_client_instance,
 	.start = hclgevf_ae_start,
 	.stop = hclgevf_ae_stop,
+	.client_start = hclgevf_client_start,
+	.client_stop = hclgevf_client_stop,
 	.map_ring_to_vector = hclgevf_map_ring_to_vector,
 	.unmap_ring_from_vector = hclgevf_unmap_ring_from_vector,
 	.get_vector = hclgevf_get_vector,
@@ -2450,6 +2521,7 @@ static const struct hnae3_ae_ops hclgevf_ops = {
 	.ae_dev_resetting = hclgevf_ae_dev_resetting,
 	.ae_dev_reset_cnt = hclgevf_ae_dev_reset_cnt,
 	.set_gro_en = hclgevf_gro_en,
+	.set_mtu = hclgevf_set_mtu,
 };
 
 static struct hnae3_ae_algo ae_algovf = {

drivers/net/ethernet/hisilicon/hns3/hns3vf/hclgevf_main.h

@@ -201,7 +201,9 @@ struct hclgevf_dev {
 	struct hclgevf_mbx_arq_ring arq; /* mailbox async rx queue */
 
 	struct timer_list service_timer;
+	struct timer_list keep_alive_timer;
 	struct work_struct service_task;
+	struct work_struct keep_alive_task;
 	struct work_struct rst_service_task;
 	struct work_struct mbx_service_task;