1 files changed, 176 insertions, 212 deletions

diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_mbx.c b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_mbx.c
index a3c0822191a9..7f24fcb4f96a 100644
--- a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_mbx.c
+++ b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_mbx.c
@@ -5,6 +5,11 @@
 #include "hclge_mbx.h"
 #include "hnae3.h"
 
+static u16 hclge_errno_to_resp(int errno)
+{
+	return abs(errno);
+}
+
 /* hclge_gen_resp_to_vf: used to generate a synchronous response to VF when PF
  * receives a mailbox message from VF.
  * @vport: pointer to struct hclge_vport
@@ -14,25 +19,25 @@
  */
 static int hclge_gen_resp_to_vf(struct hclge_vport *vport,
 				struct hclge_mbx_vf_to_pf_cmd *vf_to_pf_req,
-				int resp_status,
-				u8 *resp_data, u16 resp_data_len)
+				struct hclge_respond_to_vf_msg *resp_msg)
 {
 	struct hclge_mbx_pf_to_vf_cmd *resp_pf_to_vf;
 	struct hclge_dev *hdev = vport->back;
 	enum hclge_cmd_status status;
 	struct hclge_desc desc;
+	u16 resp;
 
 	resp_pf_to_vf = (struct hclge_mbx_pf_to_vf_cmd *)desc.data;
 
-	if (resp_data_len > HCLGE_MBX_MAX_RESP_DATA_SIZE) {
+	if (resp_msg->len > HCLGE_MBX_MAX_RESP_DATA_SIZE) {
 		dev_err(&hdev->pdev->dev,
 			"PF fail to gen resp to VF len %u exceeds max len %u\n",
-			resp_data_len,
+			resp_msg->len,
 			HCLGE_MBX_MAX_RESP_DATA_SIZE);
-		/* If resp_data_len is too long, set the value to max length
+		/* If resp_msg->len is too long, set the value to max length
 		 * and return the msg to VF
 		 */
-		resp_data_len = HCLGE_MBX_MAX_RESP_DATA_SIZE;
+		resp_msg->len = HCLGE_MBX_MAX_RESP_DATA_SIZE;
 	}
 
 	hclge_cmd_setup_basic_desc(&desc, HCLGEVF_OPC_MBX_PF_TO_VF, false);
@@ -40,18 +45,29 @@ static int hclge_gen_resp_to_vf(struct hclge_vport *vport,
 	resp_pf_to_vf->dest_vfid = vf_to_pf_req->mbx_src_vfid;
 	resp_pf_to_vf->msg_len = vf_to_pf_req->msg_len;
 
-	resp_pf_to_vf->msg[0] = HCLGE_MBX_PF_VF_RESP;
-	resp_pf_to_vf->msg[1] = vf_to_pf_req->msg[0];
-	resp_pf_to_vf->msg[2] = vf_to_pf_req->msg[1];
-	resp_pf_to_vf->msg[3] = (resp_status == 0) ? 0 : 1;
+	resp_pf_to_vf->msg.code = HCLGE_MBX_PF_VF_RESP;
+	resp_pf_to_vf->msg.vf_mbx_msg_code = vf_to_pf_req->msg.code;
+	resp_pf_to_vf->msg.vf_mbx_msg_subcode = vf_to_pf_req->msg.subcode;
+	resp = hclge_errno_to_resp(resp_msg->status);
+	if (resp < SHRT_MAX) {
+		resp_pf_to_vf->msg.resp_status = resp;
+	} else {
+		dev_warn(&hdev->pdev->dev,
+			 "failed to send response to VF, response status %d is out-of-bound\n",
+			 resp);
+		resp_pf_to_vf->msg.resp_status = EIO;
+	}
 
-	if (resp_data && resp_data_len > 0)
-		memcpy(&resp_pf_to_vf->msg[4], resp_data, resp_data_len);
+	if (resp_msg->len > 0)
+		memcpy(resp_pf_to_vf->msg.resp_data, resp_msg->data,
+		       resp_msg->len);
 
 	status = hclge_cmd_send(&hdev->hw, &desc, 1);
 	if (status)
 		dev_err(&hdev->pdev->dev,
-			"PF failed(=%d) to send response to VF\n", status);
+			"failed to send response to VF, status: %d, vfid: %u, code: %u, subcode: %u.\n",
+			status, vf_to_pf_req->mbx_src_vfid,
+			vf_to_pf_req->msg.code, vf_to_pf_req->msg.subcode);
 
 	return status;
 }
@@ -70,15 +86,15 @@ static int hclge_send_mbx_msg(struct hclge_vport *vport, u8 *msg, u16 msg_len,
 
 	resp_pf_to_vf->dest_vfid = dest_vfid;
 	resp_pf_to_vf->msg_len = msg_len;
-	resp_pf_to_vf->msg[0] = mbx_opcode;
+	resp_pf_to_vf->msg.code = mbx_opcode;
 
-	memcpy(&resp_pf_to_vf->msg[1], msg, msg_len);
+	memcpy(&resp_pf_to_vf->msg.vf_mbx_msg_code, msg, msg_len);
 
 	status = hclge_cmd_send(&hdev->hw, &desc, 1);
 	if (status)
 		dev_err(&hdev->pdev->dev,
-			"PF failed(=%d) to send mailbox message to VF\n",
-			status);
+			"failed to send mailbox to VF, status: %d, vfid: %u, opcode: %u\n",
+			status, dest_vfid, mbx_opcode);
 
 	return status;
 }
@@ -138,21 +154,20 @@ static int hclge_get_ring_chain_from_mbx(
 {
 	struct hnae3_ring_chain_node *cur_chain, *new_chain;
 	int ring_num;
-	int i;
+	int i = 0;
 
-	ring_num = req->msg[2];
+	ring_num = req->msg.ring_num;
 
-	if (ring_num > ((HCLGE_MBX_VF_MSG_DATA_NUM -
-		HCLGE_MBX_RING_MAP_BASIC_MSG_NUM) /
-		HCLGE_MBX_RING_NODE_VARIABLE_NUM))
+	if (ring_num > HCLGE_MBX_MAX_RING_CHAIN_PARAM_NUM)
 		return -ENOMEM;
 
-	hnae3_set_bit(ring_chain->flag, HNAE3_RING_TYPE_B, req->msg[3]);
+	hnae3_set_bit(ring_chain->flag, HNAE3_RING_TYPE_B,
+		      req->msg.param[i].ring_type);
 	ring_chain->tqp_index =
-			hclge_get_queue_id(vport->nic.kinfo.tqp[req->msg[4]]);
+		hclge_get_queue_id(vport->nic.kinfo.tqp
+				   [req->msg.param[i].tqp_index]);
 	hnae3_set_field(ring_chain->int_gl_idx, HNAE3_RING_GL_IDX_M,
-			HNAE3_RING_GL_IDX_S,
-			req->msg[5]);
+			HNAE3_RING_GL_IDX_S, req->msg.param[i].int_gl_index);
 
 	cur_chain = ring_chain;
 
@@ -162,18 +177,15 @@ static int hclge_get_ring_chain_from_mbx(
 			goto err;
 
 		hnae3_set_bit(new_chain->flag, HNAE3_RING_TYPE_B,
-			      req->msg[HCLGE_MBX_RING_NODE_VARIABLE_NUM * i +
-			      HCLGE_MBX_RING_MAP_BASIC_MSG_NUM]);
+			      req->msg.param[i].ring_type);
 
 		new_chain->tqp_index =
 		hclge_get_queue_id(vport->nic.kinfo.tqp
-			[req->msg[HCLGE_MBX_RING_NODE_VARIABLE_NUM * i +
-			HCLGE_MBX_RING_MAP_BASIC_MSG_NUM + 1]]);
+			[req->msg.param[i].tqp_index]);
 
 		hnae3_set_field(new_chain->int_gl_idx, HNAE3_RING_GL_IDX_M,
 				HNAE3_RING_GL_IDX_S,
-				req->msg[HCLGE_MBX_RING_NODE_VARIABLE_NUM * i +
-				HCLGE_MBX_RING_MAP_BASIC_MSG_NUM + 2]);
+				req->msg.param[i].int_gl_index);
 
 		cur_chain->next = new_chain;
 		cur_chain = new_chain;
@@ -189,7 +201,7 @@ static int hclge_map_unmap_ring_to_vf_vector(struct hclge_vport *vport, bool en,
 					     struct hclge_mbx_vf_to_pf_cmd *req)
 {
 	struct hnae3_ring_chain_node ring_chain;
-	int vector_id = req->msg[1];
+	int vector_id = req->msg.vector_id;
 	int ret;
 
 	memset(&ring_chain, 0, sizeof(ring_chain));
@@ -207,13 +219,9 @@ static int hclge_map_unmap_ring_to_vf_vector(struct hclge_vport *vport, bool en,
 static int hclge_set_vf_promisc_mode(struct hclge_vport *vport,
 				     struct hclge_mbx_vf_to_pf_cmd *req)
 {
-#define HCLGE_MBX_BC_INDEX	1
-#define HCLGE_MBX_UC_INDEX	2
-#define HCLGE_MBX_MC_INDEX	3
-
-	bool en_bc = req->msg[HCLGE_MBX_BC_INDEX] ? true : false;
-	bool en_uc = req->msg[HCLGE_MBX_UC_INDEX] ? true : false;
-	bool en_mc = req->msg[HCLGE_MBX_MC_INDEX] ? true : false;
+	bool en_bc = req->msg.en_bc ? true : false;
+	bool en_uc = req->msg.en_uc ? true : false;
+	bool en_mc = req->msg.en_mc ? true : false;
 	int ret;
 
 	if (!vport->vf_info.trusted) {
@@ -222,8 +230,6 @@ static int hclge_set_vf_promisc_mode(struct hclge_vport *vport,
 	}
 
 	ret = hclge_set_vport_promisc_mode(vport, en_uc, en_mc, en_bc);
-	if (req->mbx_need_resp)
-		hclge_gen_resp_to_vf(vport, req, ret, NULL, 0);
 
 	vport->vf_info.promisc_enable = (en_uc || en_mc) ? 1 : 0;
 
@@ -244,26 +250,25 @@ void hclge_inform_vf_promisc_info(struct hclge_vport *vport)
 static int hclge_set_vf_uc_mac_addr(struct hclge_vport *vport,
 				    struct hclge_mbx_vf_to_pf_cmd *mbx_req)
 {
-	const u8 *mac_addr = (const u8 *)(&mbx_req->msg[2]);
+#define HCLGE_MBX_VF_OLD_MAC_ADDR_OFFSET	6
+
+	const u8 *mac_addr = (const u8 *)(mbx_req->msg.data);
 	struct hclge_dev *hdev = vport->back;
 	int status;
 
-	if (mbx_req->msg[1] == HCLGE_MBX_MAC_VLAN_UC_MODIFY) {
-		const u8 *old_addr = (const u8 *)(&mbx_req->msg[8]);
+	if (mbx_req->msg.subcode == HCLGE_MBX_MAC_VLAN_UC_MODIFY) {
+		const u8 *old_addr = (const u8 *)
+		(&mbx_req->msg.data[HCLGE_MBX_VF_OLD_MAC_ADDR_OFFSET]);
 
 		/* If VF MAC has been configured by the host then it
 		 * cannot be overridden by the MAC specified by the VM.
 		 */
 		if (!is_zero_ether_addr(vport->vf_info.mac) &&
-		    !ether_addr_equal(mac_addr, vport->vf_info.mac)) {
-			status = -EPERM;
-			goto out;
-		}
+		    !ether_addr_equal(mac_addr, vport->vf_info.mac))
+			return -EPERM;
 
-		if (!is_valid_ether_addr(mac_addr)) {
-			status = -EINVAL;
-			goto out;
-		}
+		if (!is_valid_ether_addr(mac_addr))
+			return -EINVAL;
 
 		hclge_rm_uc_addr_common(vport, old_addr);
 		status = hclge_add_uc_addr_common(vport, mac_addr);
@@ -275,12 +280,12 @@ static int hclge_set_vf_uc_mac_addr(struct hclge_vport *vport,
 			hclge_add_vport_mac_table(vport, mac_addr,
 						  HCLGE_MAC_ADDR_UC);
 		}
-	} else if (mbx_req->msg[1] == HCLGE_MBX_MAC_VLAN_UC_ADD) {
+	} else if (mbx_req->msg.subcode == HCLGE_MBX_MAC_VLAN_UC_ADD) {
 		status = hclge_add_uc_addr_common(vport, mac_addr);
 		if (!status)
 			hclge_add_vport_mac_table(vport, mac_addr,
 						  HCLGE_MAC_ADDR_UC);
-	} else if (mbx_req->msg[1] == HCLGE_MBX_MAC_VLAN_UC_REMOVE) {
+	} else if (mbx_req->msg.subcode == HCLGE_MBX_MAC_VLAN_UC_REMOVE) {
 		status = hclge_rm_uc_addr_common(vport, mac_addr);
 		if (!status)
 			hclge_rm_vport_mac_table(vport, mac_addr,
@@ -288,33 +293,26 @@ static int hclge_set_vf_uc_mac_addr(struct hclge_vport *vport,
 	} else {
 		dev_err(&hdev->pdev->dev,
 			"failed to set unicast mac addr, unknown subcode %u\n",
-			mbx_req->msg[1]);
+			mbx_req->msg.subcode);
 		return -EIO;
 	}
 
-out:
-	if (mbx_req->mbx_need_resp & HCLGE_MBX_NEED_RESP_BIT)
-		hclge_gen_resp_to_vf(vport, mbx_req, status, NULL, 0);
-
-	return 0;
+	return status;
 }
 
 static int hclge_set_vf_mc_mac_addr(struct hclge_vport *vport,
-				    struct hclge_mbx_vf_to_pf_cmd *mbx_req,
-				    bool gen_resp)
+				    struct hclge_mbx_vf_to_pf_cmd *mbx_req)
 {
-	const u8 *mac_addr = (const u8 *)(&mbx_req->msg[2]);
+	const u8 *mac_addr = (const u8 *)(mbx_req->msg.data);
 	struct hclge_dev *hdev = vport->back;
-	u8 resp_len = 0;
-	u8 resp_data;
 	int status;
 
-	if (mbx_req->msg[1] == HCLGE_MBX_MAC_VLAN_MC_ADD) {
+	if (mbx_req->msg.subcode == HCLGE_MBX_MAC_VLAN_MC_ADD) {
 		status = hclge_add_mc_addr_common(vport, mac_addr);
 		if (!status)
 			hclge_add_vport_mac_table(vport, mac_addr,
 						  HCLGE_MAC_ADDR_MC);
-	} else if (mbx_req->msg[1] == HCLGE_MBX_MAC_VLAN_MC_REMOVE) {
+	} else if (mbx_req->msg.subcode == HCLGE_MBX_MAC_VLAN_MC_REMOVE) {
 		status = hclge_rm_mc_addr_common(vport, mac_addr);
 		if (!status)
 			hclge_rm_vport_mac_table(vport, mac_addr,
@@ -322,15 +320,11 @@ static int hclge_set_vf_mc_mac_addr(struct hclge_vport *vport,
 	} else {
 		dev_err(&hdev->pdev->dev,
 			"failed to set mcast mac addr, unknown subcode %u\n",
-			mbx_req->msg[1]);
+			mbx_req->msg.subcode);
 		return -EIO;
 	}
 
-	if (gen_resp)
-		hclge_gen_resp_to_vf(vport, mbx_req, status,
-				     &resp_data, resp_len);
-
-	return 0;
+	return status;
 }
 
 int hclge_push_vf_port_base_vlan_info(struct hclge_vport *vport, u8 vfid,
@@ -351,12 +345,16 @@ int hclge_push_vf_port_base_vlan_info(struct hclge_vport *vport, u8 vfid,
 }
 
 static int hclge_set_vf_vlan_cfg(struct hclge_vport *vport,
-				 struct hclge_mbx_vf_to_pf_cmd *mbx_req)
+				 struct hclge_mbx_vf_to_pf_cmd *mbx_req,
+				 struct hclge_respond_to_vf_msg *resp_msg)
 {
+#define HCLGE_MBX_VLAN_STATE_OFFSET	0
+#define HCLGE_MBX_VLAN_INFO_OFFSET	2
+
 	struct hclge_vf_vlan_cfg *msg_cmd;
 	int status = 0;
 
-	msg_cmd = (struct hclge_vf_vlan_cfg *)mbx_req->msg;
+	msg_cmd = (struct hclge_vf_vlan_cfg *)&mbx_req->msg;
 	if (msg_cmd->subcode == HCLGE_MBX_VLAN_FILTER) {
 		struct hnae3_handle *handle = &vport->nic;
 		u16 vlan, proto;
@@ -367,38 +365,32 @@ static int hclge_set_vf_vlan_cfg(struct hclge_vport *vport,
 		proto =  msg_cmd->proto;
 		status = hclge_set_vlan_filter(handle, cpu_to_be16(proto),
 					       vlan, is_kill);
-		if (mbx_req->mbx_need_resp)
-			return hclge_gen_resp_to_vf(vport, mbx_req, status,
-						    NULL, 0);
 	} else if (msg_cmd->subcode == HCLGE_MBX_VLAN_RX_OFF_CFG) {
 		struct hnae3_handle *handle = &vport->nic;
 		bool en = msg_cmd->is_kill ? true : false;
 
 		status = hclge_en_hw_strip_rxvtag(handle, en);
-	} else if (mbx_req->msg[1] == HCLGE_MBX_PORT_BASE_VLAN_CFG) {
+	} else if (msg_cmd->subcode == HCLGE_MBX_PORT_BASE_VLAN_CFG) {
 		struct hclge_vlan_info *vlan_info;
 		u16 *state;
 
-		state = (u16 *)&mbx_req->msg[2];
-		vlan_info = (struct hclge_vlan_info *)&mbx_req->msg[4];
+		state = (u16 *)&mbx_req->msg.data[HCLGE_MBX_VLAN_STATE_OFFSET];
+		vlan_info = (struct hclge_vlan_info *)
+			&mbx_req->msg.data[HCLGE_MBX_VLAN_INFO_OFFSET];
 		status = hclge_update_port_base_vlan_cfg(vport, *state,
 							 vlan_info);
-	} else if (mbx_req->msg[1] == HCLGE_MBX_GET_PORT_BASE_VLAN_STATE) {
-		u8 state;
-
-		state = vport->port_base_vlan_cfg.state;
-		status = hclge_gen_resp_to_vf(vport, mbx_req, 0, &state,
-					      sizeof(u8));
+	} else if (msg_cmd->subcode == HCLGE_MBX_GET_PORT_BASE_VLAN_STATE) {
+		resp_msg->data[0] = vport->port_base_vlan_cfg.state;
+		resp_msg->len = sizeof(u8);
 	}
 
 	return status;
 }
 
 static int hclge_set_vf_alive(struct hclge_vport *vport,
-			      struct hclge_mbx_vf_to_pf_cmd *mbx_req,
-			      bool gen_resp)
+			      struct hclge_mbx_vf_to_pf_cmd *mbx_req)
 {
-	bool alive = !!mbx_req->msg[2];
+	bool alive = !!mbx_req->msg.data[0];
 	int ret = 0;
 
 	if (alive)
@@ -409,73 +401,76 @@ static int hclge_set_vf_alive(struct hclge_vport *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)
+static void hclge_get_vf_tcinfo(struct hclge_vport *vport,
+				struct hclge_respond_to_vf_msg *resp_msg)
 {
 	struct hnae3_knic_private_info *kinfo = &vport->nic.kinfo;
-	u8 vf_tc_map = 0;
 	unsigned int i;
-	int ret;
 
 	for (i = 0; i < kinfo->num_tc; i++)
-		vf_tc_map |= BIT(i);
-
-	ret = hclge_gen_resp_to_vf(vport, mbx_req, 0, &vf_tc_map,
-				   sizeof(vf_tc_map));
+		resp_msg->data[0] |= BIT(i);
 
-	return ret;
+	resp_msg->len = sizeof(u8);
 }
 
-static int hclge_get_vf_queue_info(struct hclge_vport *vport,
-				   struct hclge_mbx_vf_to_pf_cmd *mbx_req,
-				   bool gen_resp)
+static void hclge_get_vf_queue_info(struct hclge_vport *vport,
+				    struct hclge_respond_to_vf_msg *resp_msg)
 {
 #define HCLGE_TQPS_RSS_INFO_LEN		6
-	u8 resp_data[HCLGE_TQPS_RSS_INFO_LEN];
+#define HCLGE_TQPS_ALLOC_OFFSET		0
+#define HCLGE_TQPS_RSS_SIZE_OFFSET	2
+#define HCLGE_TQPS_RX_BUFFER_LEN_OFFSET	4
+
 	struct hclge_dev *hdev = vport->back;
 
 	/* get the queue related info */
-	memcpy(&resp_data[0], &vport->alloc_tqps, sizeof(u16));
-	memcpy(&resp_data[2], &vport->nic.kinfo.rss_size, sizeof(u16));
-	memcpy(&resp_data[4], &hdev->rx_buf_len, sizeof(u16));
-
-	return hclge_gen_resp_to_vf(vport, mbx_req, 0, resp_data,
-				    HCLGE_TQPS_RSS_INFO_LEN);
+	memcpy(&resp_msg->data[HCLGE_TQPS_ALLOC_OFFSET],
+	       &vport->alloc_tqps, sizeof(u16));
+	memcpy(&resp_msg->data[HCLGE_TQPS_RSS_SIZE_OFFSET],
+	       &vport->nic.kinfo.rss_size, sizeof(u16));
+	memcpy(&resp_msg->data[HCLGE_TQPS_RX_BUFFER_LEN_OFFSET],
+	       &hdev->rx_buf_len, sizeof(u16));
+	resp_msg->len = HCLGE_TQPS_RSS_INFO_LEN;
 }
 
-static int hclge_get_vf_mac_addr(struct hclge_vport *vport,
-				 struct hclge_mbx_vf_to_pf_cmd *mbx_req)
+static void hclge_get_vf_mac_addr(struct hclge_vport *vport,
+				  struct hclge_respond_to_vf_msg *resp_msg)
 {
-	return hclge_gen_resp_to_vf(vport, mbx_req, 0, vport->vf_info.mac,
-				    ETH_ALEN);
+	ether_addr_copy(resp_msg->data, vport->vf_info.mac);
+	resp_msg->len = ETH_ALEN;
 }
 
-static int hclge_get_vf_queue_depth(struct hclge_vport *vport,
-				    struct hclge_mbx_vf_to_pf_cmd *mbx_req,
-				    bool gen_resp)
+static void hclge_get_vf_queue_depth(struct hclge_vport *vport,
+				     struct hclge_respond_to_vf_msg *resp_msg)
 {
 #define HCLGE_TQPS_DEPTH_INFO_LEN	4
-	u8 resp_data[HCLGE_TQPS_DEPTH_INFO_LEN];
+#define HCLGE_TQPS_NUM_TX_DESC_OFFSET	0
+#define HCLGE_TQPS_NUM_RX_DESC_OFFSET	2
+
 	struct hclge_dev *hdev = vport->back;
 
 	/* get the queue depth info */
-	memcpy(&resp_data[0], &hdev->num_tx_desc, sizeof(u16));
-	memcpy(&resp_data[2], &hdev->num_rx_desc, sizeof(u16));
-	return hclge_gen_resp_to_vf(vport, mbx_req, 0, resp_data,
-				    HCLGE_TQPS_DEPTH_INFO_LEN);
+	memcpy(&resp_msg->data[HCLGE_TQPS_NUM_TX_DESC_OFFSET],
+	       &hdev->num_tx_desc, sizeof(u16));
+	memcpy(&resp_msg->data[HCLGE_TQPS_NUM_RX_DESC_OFFSET],
+	       &hdev->num_rx_desc, sizeof(u16));
+	resp_msg->len = HCLGE_TQPS_DEPTH_INFO_LEN;
 }
 
-static int hclge_get_vf_media_type(struct hclge_vport *vport,
-				   struct hclge_mbx_vf_to_pf_cmd *mbx_req)
+static void hclge_get_vf_media_type(struct hclge_vport *vport,
+				    struct hclge_respond_to_vf_msg *resp_msg)
 {
+#define HCLGE_VF_MEDIA_TYPE_OFFSET	0
+#define HCLGE_VF_MODULE_TYPE_OFFSET	1
+#define HCLGE_VF_MEDIA_TYPE_LENGTH	2
+
 	struct hclge_dev *hdev = vport->back;
-	u8 resp_data[2];
 
-	resp_data[0] = hdev->hw.mac.media_type;
-	resp_data[1] = hdev->hw.mac.module_type;
-	return hclge_gen_resp_to_vf(vport, mbx_req, 0, resp_data,
-				    sizeof(resp_data));
+	resp_msg->data[HCLGE_VF_MEDIA_TYPE_OFFSET] =
+		hdev->hw.mac.media_type;
+	resp_msg->data[HCLGE_VF_MODULE_TYPE_OFFSET] =
+		hdev->hw.mac.module_type;
+	resp_msg->len = HCLGE_VF_MEDIA_TYPE_LENGTH;
 }
 
 static int hclge_get_link_info(struct hclge_vport *vport,
@@ -529,7 +524,7 @@ static void hclge_get_link_mode(struct hclge_vport *vport,
 	advertising = hdev->hw.mac.advertising[0];
 	supported = hdev->hw.mac.supported[0];
 	dest_vfid = mbx_req->mbx_src_vfid;
-	msg_data[0] = mbx_req->msg[2];
+	msg_data[0] = mbx_req->msg.data[0];
 
 	send_data = msg_data[0] == HCLGE_SUPPORTED ? supported : advertising;
 
@@ -543,29 +538,22 @@ static void hclge_mbx_reset_vf_queue(struct hclge_vport *vport,
 {
 	u16 queue_id;
 
-	memcpy(&queue_id, &mbx_req->msg[2], sizeof(queue_id));
+	memcpy(&queue_id, mbx_req->msg.data, sizeof(queue_id));
 
 	hclge_reset_vf_queue(vport, queue_id);
-
-	/* send response msg to VF after queue reset complete */
-	hclge_gen_resp_to_vf(vport, mbx_req, 0, NULL, 0);
 }
 
-static void hclge_reset_vf(struct hclge_vport *vport,
-			   struct hclge_mbx_vf_to_pf_cmd *mbx_req)
+static int hclge_reset_vf(struct hclge_vport *vport)
 {
 	struct hclge_dev *hdev = vport->back;
-	int ret;
 
 	dev_warn(&hdev->pdev->dev, "PF received VF reset request from VF %u!",
 		 vport->vport_id);
 
-	ret = hclge_func_reset_cmd(hdev, vport->vport_id);
-	hclge_gen_resp_to_vf(vport, mbx_req, ret, NULL, 0);
+	return hclge_func_reset_cmd(hdev, vport->vport_id);
 }
 
-static void hclge_vf_keep_alive(struct hclge_vport *vport,
-				struct hclge_mbx_vf_to_pf_cmd *mbx_req)
+static void hclge_vf_keep_alive(struct hclge_vport *vport)
 {
 	vport->last_active_jiffies = jiffies;
 }
@@ -573,45 +561,39 @@ static void hclge_vf_keep_alive(struct hclge_vport *vport,
 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);
+	memcpy(&mtu, mbx_req->msg.data, sizeof(mtu));
 
-	return hclge_gen_resp_to_vf(vport, mbx_req, ret, NULL, 0);
+	return hclge_set_vport_mtu(vport, mtu);
 }
 
-static int hclge_get_queue_id_in_pf(struct hclge_vport *vport,
-				    struct hclge_mbx_vf_to_pf_cmd *mbx_req)
+static void hclge_get_queue_id_in_pf(struct hclge_vport *vport,
+				     struct hclge_mbx_vf_to_pf_cmd *mbx_req,
+				     struct hclge_respond_to_vf_msg *resp_msg)
 {
 	u16 queue_id, qid_in_pf;
-	u8 resp_data[2];
 
-	memcpy(&queue_id, &mbx_req->msg[2], sizeof(queue_id));
+	memcpy(&queue_id, mbx_req->msg.data, sizeof(queue_id));
 	qid_in_pf = hclge_covert_handle_qid_global(&vport->nic, queue_id);
-	memcpy(resp_data, &qid_in_pf, sizeof(qid_in_pf));
-
-	return hclge_gen_resp_to_vf(vport, mbx_req, 0, resp_data,
-				    sizeof(resp_data));
+	memcpy(resp_msg->data, &qid_in_pf, sizeof(qid_in_pf));
+	resp_msg->len = sizeof(qid_in_pf);
 }
 
-static int hclge_get_rss_key(struct hclge_vport *vport,
-			     struct hclge_mbx_vf_to_pf_cmd *mbx_req)
+static void hclge_get_rss_key(struct hclge_vport *vport,
+			      struct hclge_mbx_vf_to_pf_cmd *mbx_req,
+			      struct hclge_respond_to_vf_msg *resp_msg)
 {
 #define HCLGE_RSS_MBX_RESP_LEN	8
-	u8 resp_data[HCLGE_RSS_MBX_RESP_LEN];
 	struct hclge_dev *hdev = vport->back;
 	u8 index;
 
-	index = mbx_req->msg[2];
+	index = mbx_req->msg.data[0];
 
-	memcpy(&resp_data[0],
+	memcpy(resp_msg->data,
 	       &hdev->vport[0].rss_hash_key[index * HCLGE_RSS_MBX_RESP_LEN],
 	       HCLGE_RSS_MBX_RESP_LEN);
-
-	return hclge_gen_resp_to_vf(vport, mbx_req, 0, resp_data,
-				    HCLGE_RSS_MBX_RESP_LEN);
+	resp_msg->len = HCLGE_RSS_MBX_RESP_LEN;
 }
 
 static void hclge_link_fail_parse(struct hclge_dev *hdev, u8 link_fail_code)
@@ -634,13 +616,10 @@ static void hclge_link_fail_parse(struct hclge_dev *hdev, u8 link_fail_code)
 static void hclge_handle_link_change_event(struct hclge_dev *hdev,
 					   struct hclge_mbx_vf_to_pf_cmd *req)
 {
-#define LINK_STATUS_OFFSET	1
-#define LINK_FAIL_CODE_OFFSET	2
-
 	hclge_task_schedule(hdev, 0);
 
-	if (!req->msg[LINK_STATUS_OFFSET])
-		hclge_link_fail_parse(hdev, req->msg[LINK_FAIL_CODE_OFFSET]);
+	if (!req->msg.subcode)
+		hclge_link_fail_parse(hdev, req->msg.data[0]);
 }
 
 static bool hclge_cmd_crq_empty(struct hclge_hw *hw)
@@ -662,12 +641,14 @@ static void hclge_handle_ncsi_error(struct hclge_dev *hdev)
 void hclge_mbx_handler(struct hclge_dev *hdev)
 {
 	struct hclge_cmq_ring *crq = &hdev->hw.cmq.crq;
+	struct hclge_respond_to_vf_msg resp_msg;
 	struct hclge_mbx_vf_to_pf_cmd *req;
 	struct hclge_vport *vport;
 	struct hclge_desc *desc;
 	unsigned int flag;
-	int ret;
+	int ret = 0;
 
+	memset(&resp_msg, 0, sizeof(resp_msg));
 	/* handle all the mailbox requests in the queue */
 	while (!hclge_cmd_crq_empty(&hdev->hw)) {
 		if (test_bit(HCLGE_STATE_CMD_DISABLE, &hdev->state)) {
@@ -683,7 +664,7 @@ void hclge_mbx_handler(struct hclge_dev *hdev)
 		if (unlikely(!hnae3_get_bit(flag, HCLGE_CMDQ_RX_OUTVLD_B))) {
 			dev_warn(&hdev->pdev->dev,
 				 "dropped invalid mailbox message, code = %u\n",
-				 req->msg[0]);
+				 req->msg.code);
 
 			/* dropping/not processing this invalid message */
 			crq->desc[crq->next_to_use].flag = 0;
@@ -693,7 +674,7 @@ void hclge_mbx_handler(struct hclge_dev *hdev)
 
 		vport = &hdev->vport[req->mbx_src_vfid];
 
-		switch (req->msg[0]) {
+		switch (req->msg.code) {
 		case HCLGE_MBX_MAP_RING_TO_VECTOR:
 			ret = hclge_map_unmap_ring_to_vf_vector(vport, true,
 								req);
@@ -717,47 +698,34 @@ void hclge_mbx_handler(struct hclge_dev *hdev)
 					ret);
 			break;
 		case HCLGE_MBX_SET_MULTICAST:
-			ret = hclge_set_vf_mc_mac_addr(vport, req, false);
+			ret = hclge_set_vf_mc_mac_addr(vport, req);
 			if (ret)
 				dev_err(&hdev->pdev->dev,
 					"PF fail(%d) to set VF MC MAC Addr\n",
 					ret);
 			break;
 		case HCLGE_MBX_SET_VLAN:
-			ret = hclge_set_vf_vlan_cfg(vport, req);
+			ret = hclge_set_vf_vlan_cfg(vport, req, &resp_msg);
 			if (ret)
 				dev_err(&hdev->pdev->dev,
 					"PF failed(%d) to config VF's VLAN\n",
 					ret);
 			break;
 		case HCLGE_MBX_SET_ALIVE:
-			ret = hclge_set_vf_alive(vport, req, false);
+			ret = hclge_set_vf_alive(vport, req);
 			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)
-				dev_err(&hdev->pdev->dev,
-					"PF failed(%d) to get Q info for VF\n",
-					ret);
+			hclge_get_vf_queue_info(vport, &resp_msg);
 			break;
 		case HCLGE_MBX_GET_QDEPTH:
-			ret = hclge_get_vf_queue_depth(vport, req, true);
-			if (ret)
-				dev_err(&hdev->pdev->dev,
-					"PF failed(%d) to get Q depth for VF\n",
-					ret);
+			hclge_get_vf_queue_depth(vport, &resp_msg);
 			break;
-
 		case HCLGE_MBX_GET_TCINFO:
-			ret = hclge_get_vf_tcinfo(vport, req, true);
-			if (ret)
-				dev_err(&hdev->pdev->dev,
-					"PF failed(%d) to get TC info for VF\n",
-					ret);
+			hclge_get_vf_tcinfo(vport, &resp_msg);
 			break;
 		case HCLGE_MBX_GET_LINK_STATUS:
 			ret = hclge_get_link_info(vport, req);
@@ -770,10 +738,10 @@ void hclge_mbx_handler(struct hclge_dev *hdev)
 			hclge_mbx_reset_vf_queue(vport, req);
 			break;
 		case HCLGE_MBX_RESET:
-			hclge_reset_vf(vport, req);
+			ret = hclge_reset_vf(vport);
 			break;
 		case HCLGE_MBX_KEEP_ALIVE:
-			hclge_vf_keep_alive(vport, req);
+			hclge_vf_keep_alive(vport);
 			break;
 		case HCLGE_MBX_SET_MTU:
 			ret = hclge_set_vf_mtu(vport, req);
@@ -782,23 +750,16 @@ void hclge_mbx_handler(struct hclge_dev *hdev)
 					"VF fail(%d) to set mtu\n", ret);
 			break;
 		case HCLGE_MBX_GET_QID_IN_PF:
-			ret = hclge_get_queue_id_in_pf(vport, req);
-			if (ret)
-				dev_err(&hdev->pdev->dev,
-					"PF failed(%d) to get qid for VF\n",
-					ret);
+			hclge_get_queue_id_in_pf(vport, req, &resp_msg);
 			break;
 		case HCLGE_MBX_GET_RSS_KEY:
-			ret = hclge_get_rss_key(vport, req);
-			if (ret)
-				dev_err(&hdev->pdev->dev,
-					"PF fail(%d) to get rss key for VF\n",
-					ret);
+			hclge_get_rss_key(vport, req, &resp_msg);
 			break;
 		case HCLGE_MBX_GET_LINK_MODE:
 			hclge_get_link_mode(vport, req);
 			break;
 		case HCLGE_MBX_GET_VF_FLR_STATUS:
+		case HCLGE_MBX_VF_UNINIT:
 			hclge_rm_vport_all_mac_table(vport, true,
 						     HCLGE_MAC_ADDR_UC);
 			hclge_rm_vport_all_mac_table(vport, true,
@@ -806,21 +767,13 @@ void hclge_mbx_handler(struct hclge_dev *hdev)
 			hclge_rm_vport_all_vlan_table(vport, true);
 			break;
 		case HCLGE_MBX_GET_MEDIA_TYPE:
-			ret = hclge_get_vf_media_type(vport, req);
-			if (ret)
-				dev_err(&hdev->pdev->dev,
-					"PF fail(%d) to media type for VF\n",
-					ret);
+			hclge_get_vf_media_type(vport, &resp_msg);
 			break;
 		case HCLGE_MBX_PUSH_LINK_STATUS:
 			hclge_handle_link_change_event(hdev, req);
 			break;
 		case HCLGE_MBX_GET_MAC_ADDR:
-			ret = hclge_get_vf_mac_addr(vport, req);
-			if (ret)
-				dev_err(&hdev->pdev->dev,
-					"PF failed(%d) to get MAC for VF\n",
-					ret);
+			hclge_get_vf_mac_addr(vport, &resp_msg);
 			break;
 		case HCLGE_MBX_NCSI_ERROR:
 			hclge_handle_ncsi_error(hdev);
@@ -828,11 +781,22 @@ void hclge_mbx_handler(struct hclge_dev *hdev)
 		default:
 			dev_err(&hdev->pdev->dev,
 				"un-supported mailbox message, code = %u\n",
-				req->msg[0]);
+				req->msg.code);
 			break;
 		}
+
+		/* PF driver should not reply IMP */
+		if (hnae3_get_bit(req->mbx_need_resp, HCLGE_MBX_NEED_RESP_B) &&
+		    req->msg.code < HCLGE_MBX_GET_VF_FLR_STATUS) {
+			resp_msg.status = ret;
+			hclge_gen_resp_to_vf(vport, req, &resp_msg);
+		}
+
 		crq->desc[crq->next_to_use].flag = 0;
 		hclge_mbx_ring_ptr_move_crq(crq);
+
+		/* reinitialize ret after complete the mbx message processing */
+		ret = 0;
 	}
 
 	/* Write back CMDQ_RQ header pointer, M7 need this pointer */