diff --git a/drivers/net/ethernet/mellanox/mlx4/cmd.c b/drivers/net/ethernet/mellanox/mlx4/cmd.c
index 09c969420eac..b1cef7a0f7ca 100644
--- a/drivers/net/ethernet/mellanox/mlx4/cmd.c
+++ b/drivers/net/ethernet/mellanox/mlx4/cmd.c
@@ -1995,6 +1995,8 @@ static int mlx4_master_activate_admin_state(struct mlx4_priv *priv, int slave)
 	int port, err;
 	struct mlx4_vport_state *vp_admin;
 	struct mlx4_vport_oper_state *vp_oper;
+	struct mlx4_slave_state *slave_state =
+		&priv->mfunc.master.slave_state[slave];
 	struct mlx4_active_ports actv_ports = mlx4_get_active_ports(
 			&priv->dev, slave);
 	int min_port = find_first_bit(actv_ports.ports,
@@ -2009,7 +2011,19 @@ static int mlx4_master_activate_admin_state(struct mlx4_priv *priv, int slave)
 			priv->mfunc.master.vf_admin[slave].enable_smi[port];
 		vp_oper = &priv->mfunc.master.vf_oper[slave].vport[port];
 		vp_admin = &priv->mfunc.master.vf_admin[slave].vport[port];
-		vp_oper->state = *vp_admin;
+		if (vp_admin->vlan_proto != htons(ETH_P_8021AD) ||
+		    slave_state->vst_qinq_supported) {
+			vp_oper->state.vlan_proto   = vp_admin->vlan_proto;
+			vp_oper->state.default_vlan = vp_admin->default_vlan;
+			vp_oper->state.default_qos  = vp_admin->default_qos;
+		}
+		vp_oper->state.link_state = vp_admin->link_state;
+		vp_oper->state.mac        = vp_admin->mac;
+		vp_oper->state.spoofchk   = vp_admin->spoofchk;
+		vp_oper->state.tx_rate    = vp_admin->tx_rate;
+		vp_oper->state.qos_vport  = vp_admin->qos_vport;
+		vp_oper->state.guid       = vp_admin->guid;
+
 		if (MLX4_VGT != vp_admin->default_vlan) {
 			err = __mlx4_register_vlan(&priv->dev, port,
 						   vp_admin->default_vlan, &(vp_oper->vlan_idx));
@@ -2097,6 +2111,7 @@ static void mlx4_master_do_cmd(struct mlx4_dev *dev, int slave, u8 cmd,
 		mlx4_warn(dev, "Received reset from slave:%d\n", slave);
 		slave_state[slave].active = false;
 		slave_state[slave].old_vlan_api = false;
+		slave_state[slave].vst_qinq_supported = false;
 		mlx4_master_deactivate_admin_state(priv, slave);
 		for (i = 0; i < MLX4_EVENT_TYPES_NUM; ++i) {
 				slave_state[slave].event_eq[i].eqn = -1;
@@ -2364,6 +2379,7 @@ int mlx4_multi_func_init(struct mlx4_dev *dev)
 			vf_oper = &priv->mfunc.master.vf_oper[i];
 			s_state = &priv->mfunc.master.slave_state[i];
 			s_state->last_cmd = MLX4_COMM_CMD_RESET;
+			s_state->vst_qinq_supported = false;
 			mutex_init(&priv->mfunc.master.gen_eqe_mutex[i]);
 			for (j = 0; j < MLX4_EVENT_TYPES_NUM; ++j)
 				s_state->event_eq[j].eqn = -1;
@@ -2955,10 +2971,13 @@ int mlx4_set_vf_mac(struct mlx4_dev *dev, int port, int vf, u64 mac)
 EXPORT_SYMBOL_GPL(mlx4_set_vf_mac);
 
 
-int mlx4_set_vf_vlan(struct mlx4_dev *dev, int port, int vf, u16 vlan, u8 qos)
+int mlx4_set_vf_vlan(struct mlx4_dev *dev, int port, int vf, u16 vlan, u8 qos,
+		     __be16 proto)
 {
 	struct mlx4_priv *priv = mlx4_priv(dev);
 	struct mlx4_vport_state *vf_admin;
+	struct mlx4_slave_state *slave_state;
+	struct mlx4_vport_oper_state *vf_oper;
 	int slave;
 
 	if ((!mlx4_is_master(dev)) ||
@@ -2968,12 +2987,31 @@ int mlx4_set_vf_vlan(struct mlx4_dev *dev, int port, int vf, u16 vlan, u8 qos)
 	if ((vlan > 4095) || (qos > 7))
 		return -EINVAL;
 
+	if (proto == htons(ETH_P_8021AD) &&
+	    !(dev->caps.flags2 & MLX4_DEV_CAP_FLAG2_SVLAN_BY_QP))
+		return -EPROTONOSUPPORT;
+
+	if (proto != htons(ETH_P_8021Q) &&
+	    proto != htons(ETH_P_8021AD))
+		return -EINVAL;
+
+	if ((proto == htons(ETH_P_8021AD)) &&
+	    ((vlan == 0) || (vlan == MLX4_VGT)))
+		return -EINVAL;
+
 	slave = mlx4_get_slave_indx(dev, vf);
 	if (slave < 0)
 		return -EINVAL;
 
+	slave_state = &priv->mfunc.master.slave_state[slave];
+	if ((proto == htons(ETH_P_8021AD)) && (slave_state->active) &&
+	    (!slave_state->vst_qinq_supported)) {
+		mlx4_err(dev, "vf %d does not support VST QinQ mode\n", vf);
+		return -EPROTONOSUPPORT;
+	}
 	port = mlx4_slaves_closest_port(dev, slave, port);
 	vf_admin = &priv->mfunc.master.vf_admin[slave].vport[port];
+	vf_oper = &priv->mfunc.master.vf_oper[slave].vport[port];
 
 	if (!mlx4_valid_vf_state_change(dev, port, vf_admin, vlan, qos))
 		return -EPERM;
@@ -2983,6 +3021,7 @@ int mlx4_set_vf_vlan(struct mlx4_dev *dev, int port, int vf, u16 vlan, u8 qos)
 	else
 		vf_admin->default_vlan = vlan;
 	vf_admin->default_qos = qos;
+	vf_admin->vlan_proto = proto;
 
 	/* If rate was configured prior to VST, we saved the configured rate
 	 * in vf_admin->rate and now, if priority supported we enforce the QoS
@@ -2991,7 +3030,12 @@ int mlx4_set_vf_vlan(struct mlx4_dev *dev, int port, int vf, u16 vlan, u8 qos)
 	    vf_admin->tx_rate)
 		vf_admin->qos_vport = slave;
 
-	if (mlx4_master_immediate_activate_vlan_qos(priv, slave, port))
+	/* Try to activate new vf state without restart,
+	 * this option is not supported while moving to VST QinQ mode.
+	 */
+	if ((proto == htons(ETH_P_8021AD) &&
+	     vf_oper->state.vlan_proto != proto) ||
+	    mlx4_master_immediate_activate_vlan_qos(priv, slave, port))
 		mlx4_info(dev,
 			  "updating vf %d port %d config will take effect on next VF restart\n",
 			  vf, port);
@@ -3135,6 +3179,7 @@ int mlx4_get_vf_config(struct mlx4_dev *dev, int port, int vf, struct ifla_vf_in
 
 	ivf->vlan		= s_info->default_vlan;
 	ivf->qos		= s_info->default_qos;
+	ivf->vlan_proto		= s_info->vlan_proto;
 
 	if (mlx4_is_vf_vst_and_prio_qos(dev, port, s_info))
 		ivf->max_tx_rate = s_info->tx_rate;
diff --git a/drivers/net/ethernet/mellanox/mlx4/en_netdev.c b/drivers/net/ethernet/mellanox/mlx4/en_netdev.c
index 132eeeafcdc4..7e703bed7b82 100644
--- a/drivers/net/ethernet/mellanox/mlx4/en_netdev.c
+++ b/drivers/net/ethernet/mellanox/mlx4/en_netdev.c
@@ -2406,10 +2406,8 @@ static int mlx4_en_set_vf_vlan(struct net_device *dev, int vf, u16 vlan, u8 qos,
 	struct mlx4_en_priv *en_priv = netdev_priv(dev);
 	struct mlx4_en_dev *mdev = en_priv->mdev;
 
-	if (vlan_proto != htons(ETH_P_8021Q))
-		return -EPROTONOSUPPORT;
-
-	return mlx4_set_vf_vlan(mdev->dev, en_priv->port, vf, vlan, qos);
+	return mlx4_set_vf_vlan(mdev->dev, en_priv->port, vf, vlan, qos,
+				vlan_proto);
 }
 
 static int mlx4_en_set_vf_rate(struct net_device *dev, int vf, int min_tx_rate,
diff --git a/drivers/net/ethernet/mellanox/mlx4/fw.c b/drivers/net/ethernet/mellanox/mlx4/fw.c
index 7dc9d38a51f8..090bf81076e8 100644
--- a/drivers/net/ethernet/mellanox/mlx4/fw.c
+++ b/drivers/net/ethernet/mellanox/mlx4/fw.c
@@ -249,6 +249,72 @@ int mlx4_QUERY_FUNC(struct mlx4_dev *dev, struct mlx4_func *func, int slave)
 	return err;
 }
 
+static int mlx4_activate_vst_qinq(struct mlx4_priv *priv, int slave, int port)
+{
+	struct mlx4_vport_oper_state *vp_oper;
+	struct mlx4_vport_state *vp_admin;
+	int err;
+
+	vp_oper = &priv->mfunc.master.vf_oper[slave].vport[port];
+	vp_admin = &priv->mfunc.master.vf_admin[slave].vport[port];
+
+	if (vp_admin->default_vlan != vp_oper->state.default_vlan) {
+		err = __mlx4_register_vlan(&priv->dev, port,
+					   vp_admin->default_vlan,
+					   &vp_oper->vlan_idx);
+		if (err) {
+			vp_oper->vlan_idx = NO_INDX;
+			mlx4_warn(&priv->dev,
+				  "No vlan resources slave %d, port %d\n",
+				  slave, port);
+			return err;
+		}
+		mlx4_dbg(&priv->dev, "alloc vlan %d idx  %d slave %d port %d\n",
+			 (int)(vp_oper->state.default_vlan),
+			 vp_oper->vlan_idx, slave, port);
+	}
+	vp_oper->state.vlan_proto   = vp_admin->vlan_proto;
+	vp_oper->state.default_vlan = vp_admin->default_vlan;
+	vp_oper->state.default_qos  = vp_admin->default_qos;
+
+	return 0;
+}
+
+static int mlx4_handle_vst_qinq(struct mlx4_priv *priv, int slave, int port)
+{
+	struct mlx4_vport_oper_state *vp_oper;
+	struct mlx4_slave_state *slave_state;
+	struct mlx4_vport_state *vp_admin;
+	int err;
+
+	vp_oper = &priv->mfunc.master.vf_oper[slave].vport[port];
+	vp_admin = &priv->mfunc.master.vf_admin[slave].vport[port];
+	slave_state = &priv->mfunc.master.slave_state[slave];
+
+	if ((vp_admin->vlan_proto != htons(ETH_P_8021AD)) ||
+	    (!slave_state->active))
+		return 0;
+
+	if (vp_oper->state.vlan_proto == vp_admin->vlan_proto &&
+	    vp_oper->state.default_vlan == vp_admin->default_vlan &&
+	    vp_oper->state.default_qos == vp_admin->default_qos)
+		return 0;
+
+	if (!slave_state->vst_qinq_supported) {
+		/* Warn and revert the request to set vst QinQ mode */
+		vp_admin->vlan_proto   = vp_oper->state.vlan_proto;
+		vp_admin->default_vlan = vp_oper->state.default_vlan;
+		vp_admin->default_qos  = vp_oper->state.default_qos;
+
+		mlx4_warn(&priv->dev,
+			  "Slave %d does not support VST QinQ mode\n", slave);
+		return 0;
+	}
+
+	err = mlx4_activate_vst_qinq(priv, slave, port);
+	return err;
+}
+
 int mlx4_QUERY_FUNC_CAP_wrapper(struct mlx4_dev *dev, int slave,
 				struct mlx4_vhcr *vhcr,
 				struct mlx4_cmd_mailbox *inbox,
@@ -312,17 +378,18 @@ int mlx4_QUERY_FUNC_CAP_wrapper(struct mlx4_dev *dev, int slave,
 #define QUERY_FUNC_CAP_VF_ENABLE_QP0		0x08
 
 #define QUERY_FUNC_CAP_FLAGS0_FORCE_PHY_WQE_GID 0x80
-#define QUERY_FUNC_CAP_SUPPORTS_NON_POWER_OF_2_NUM_EQS (1 << 31)
 #define QUERY_FUNC_CAP_PHV_BIT			0x40
 #define QUERY_FUNC_CAP_VLAN_OFFLOAD_DISABLE	0x20
 
+#define QUERY_FUNC_CAP_SUPPORTS_VST_QINQ	BIT(30)
+#define QUERY_FUNC_CAP_SUPPORTS_NON_POWER_OF_2_NUM_EQS BIT(31)
+
 	if (vhcr->op_modifier == 1) {
 		struct mlx4_active_ports actv_ports =
 			mlx4_get_active_ports(dev, slave);
 		int converted_port = mlx4_slave_convert_port(
 				dev, slave, vhcr->in_modifier);
-		struct mlx4_vport_oper_state *vp_oper =
-			&priv->mfunc.master.vf_oper[slave].vport[vhcr->in_modifier];
+		struct mlx4_vport_oper_state *vp_oper;
 
 		if (converted_port < 0)
 			return -EINVAL;
@@ -361,6 +428,11 @@ int mlx4_QUERY_FUNC_CAP_wrapper(struct mlx4_dev *dev, int slave,
 		MLX4_PUT(outbox->buf, dev->caps.phys_port_id[vhcr->in_modifier],
 			 QUERY_FUNC_CAP_PHYS_PORT_ID);
 
+		vp_oper = &priv->mfunc.master.vf_oper[slave].vport[port];
+		err = mlx4_handle_vst_qinq(priv, slave, port);
+		if (err)
+			return err;
+
 		field = 0;
 		if (dev->caps.phv_bit[port])
 			field |= QUERY_FUNC_CAP_PHV_BIT;
@@ -371,6 +443,9 @@ int mlx4_QUERY_FUNC_CAP_wrapper(struct mlx4_dev *dev, int slave,
 	} else if (vhcr->op_modifier == 0) {
 		struct mlx4_active_ports actv_ports =
 			mlx4_get_active_ports(dev, slave);
+		struct mlx4_slave_state *slave_state =
+			&priv->mfunc.master.slave_state[slave];
+
 		/* enable rdma and ethernet interfaces, new quota locations,
 		 * and reserved lkey
 		 */
@@ -444,6 +519,10 @@ int mlx4_QUERY_FUNC_CAP_wrapper(struct mlx4_dev *dev, int slave,
 
 		size = dev->caps.reserved_lkey + ((slave << 8) & 0xFF00);
 		MLX4_PUT(outbox->buf, size, QUERY_FUNC_CAP_QP_RESD_LKEY_OFFSET);
+
+		if (vhcr->in_modifier & QUERY_FUNC_CAP_SUPPORTS_VST_QINQ)
+			slave_state->vst_qinq_supported = true;
+
 	} else
 		err = -EINVAL;
 
@@ -459,10 +538,12 @@ int mlx4_QUERY_FUNC_CAP(struct mlx4_dev *dev, u8 gen_or_port,
 	u32			size, qkey;
 	int			err = 0, quotas = 0;
 	u32                     in_modifier;
+	u32			slave_caps;
 
 	op_modifier = !!gen_or_port; /* 0 = general, 1 = logical port */
-	in_modifier = op_modifier ? gen_or_port :
+	slave_caps = QUERY_FUNC_CAP_SUPPORTS_VST_QINQ |
 		QUERY_FUNC_CAP_SUPPORTS_NON_POWER_OF_2_NUM_EQS;
+	in_modifier = op_modifier ? gen_or_port : slave_caps;
 
 	mailbox = mlx4_alloc_cmd_mailbox(dev);
 	if (IS_ERR(mailbox))
diff --git a/drivers/net/ethernet/mellanox/mlx4/mlx4.h b/drivers/net/ethernet/mellanox/mlx4/mlx4.h
index fdfe1ace07d7..e4878f31e45d 100644
--- a/drivers/net/ethernet/mellanox/mlx4/mlx4.h
+++ b/drivers/net/ethernet/mellanox/mlx4/mlx4.h
@@ -483,6 +483,7 @@ struct mlx4_slave_state {
 	u8 init_port_mask;
 	bool active;
 	bool old_vlan_api;
+	bool vst_qinq_supported;
 	u8 function;
 	dma_addr_t vhcr_dma;
 	u16 mtu[MLX4_MAX_PORTS + 1];
diff --git a/include/linux/mlx4/cmd.h b/include/linux/mlx4/cmd.h
index 116b284bc4ce..1f3568694a57 100644
--- a/include/linux/mlx4/cmd.h
+++ b/include/linux/mlx4/cmd.h
@@ -309,7 +309,8 @@ int mlx4_get_vf_stats(struct mlx4_dev *dev, int port, int vf_idx,
 		      struct ifla_vf_stats *vf_stats);
 u32 mlx4_comm_get_version(void);
 int mlx4_set_vf_mac(struct mlx4_dev *dev, int port, int vf, u64 mac);
-int mlx4_set_vf_vlan(struct mlx4_dev *dev, int port, int vf, u16 vlan, u8 qos);
+int mlx4_set_vf_vlan(struct mlx4_dev *dev, int port, int vf, u16 vlan,
+		     u8 qos, __be16 proto);
 int mlx4_set_vf_rate(struct mlx4_dev *dev, int port, int vf, int min_tx_rate,
 		     int max_tx_rate);
 int mlx4_set_vf_spoofchk(struct mlx4_dev *dev, int port, int vf, bool setting);