Merge branch 'hns3-next'

Guangbin Huang says:

====================
net: hns3: updates for -next

This series includes some updates for the HNS3 ethernet driver.

Change logs:
V1 -> V2:
 - Fix failed to apply to net-next problem.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>

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

@@ -135,10 +135,19 @@ struct hclge_vf_to_pf_msg {
 
 struct hclge_pf_to_vf_msg {
 	u16 code;
-	u16 vf_mbx_msg_code;
-	u16 vf_mbx_msg_subcode;
-	u16 resp_status;
-	u8 resp_data[HCLGE_MBX_MAX_RESP_DATA_SIZE];
+	union {
+		/* used for mbx response */
+		struct {
+			u16 vf_mbx_msg_code;
+			u16 vf_mbx_msg_subcode;
+			u16 resp_status;
+			u8 resp_data[HCLGE_MBX_MAX_RESP_DATA_SIZE];
+		};
+		/* used for general mbx */
+		struct {
+			u8 msg_data[HCLGE_MBX_MAX_MSG_SIZE];
+		};
+	};
 };
 
 struct hclge_mbx_vf_to_pf_cmd {

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

@@ -96,6 +96,7 @@ enum HNAE3_DEV_CAP_BITS {
 	HNAE3_DEV_SUPPORT_PORT_VLAN_BYPASS_B,
 	HNAE3_DEV_SUPPORT_VLAN_FLTR_MDF_B,
 	HNAE3_DEV_SUPPORT_MC_MAC_MNG_B,
+	HNAE3_DEV_SUPPORT_CQ_B,
 };
 
 #define hnae3_dev_fd_supported(hdev) \
@@ -155,6 +156,9 @@ enum HNAE3_DEV_CAP_BITS {
 #define hnae3_ae_dev_mc_mac_mng_supported(ae_dev) \
 	test_bit(HNAE3_DEV_SUPPORT_MC_MAC_MNG_B, (ae_dev)->caps)
 
+#define hnae3_ae_dev_cq_supported(ae_dev) \
+	test_bit(HNAE3_DEV_SUPPORT_CQ_B, (ae_dev)->caps)
+
 enum HNAE3_PF_CAP_BITS {
 	HNAE3_PF_SUPPORT_VLAN_FLTR_MDF_B = 0,
 };

drivers/net/ethernet/hisilicon/hns3/hns3_common/hclge_comm_cmd.c

@@ -149,6 +149,7 @@ static const struct hclge_comm_caps_bit_map hclge_pf_cmd_caps[] = {
 	{HCLGE_COMM_CAP_PORT_VLAN_BYPASS_B,
 	 HNAE3_DEV_SUPPORT_PORT_VLAN_BYPASS_B},
 	{HCLGE_COMM_CAP_PORT_VLAN_BYPASS_B, HNAE3_DEV_SUPPORT_VLAN_FLTR_MDF_B},
+	{HCLGE_COMM_CAP_CQ_B, HNAE3_DEV_SUPPORT_CQ_B},
 };
 
 static const struct hclge_comm_caps_bit_map hclge_vf_cmd_caps[] = {
@@ -160,6 +161,7 @@ static const struct hclge_comm_caps_bit_map hclge_vf_cmd_caps[] = {
 	{HCLGE_COMM_CAP_QB_B, HNAE3_DEV_SUPPORT_QB_B},
 	{HCLGE_COMM_CAP_TX_PUSH_B, HNAE3_DEV_SUPPORT_TX_PUSH_B},
 	{HCLGE_COMM_CAP_RXD_ADV_LAYOUT_B, HNAE3_DEV_SUPPORT_RXD_ADV_LAYOUT_B},
+	{HCLGE_COMM_CAP_CQ_B, HNAE3_DEV_SUPPORT_CQ_B},
 };
 
 static void

drivers/net/ethernet/hisilicon/hns3/hns3_common/hclge_comm_cmd.h

@@ -338,6 +338,7 @@ enum HCLGE_COMM_CAP_BITS {
 	HCLGE_COMM_CAP_PAUSE_B = 14,
 	HCLGE_COMM_CAP_RXD_ADV_LAYOUT_B = 15,
 	HCLGE_COMM_CAP_PORT_VLAN_BYPASS_B = 17,
+	HCLGE_COMM_CAP_CQ_B = 18,
 };
 
 enum HCLGE_COMM_API_CAP_BITS {

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

@@ -5159,10 +5159,7 @@ static void hns3_set_cq_period_mode(struct hns3_nic_priv *priv,
 			priv->tqp_vector[i].rx_group.dim.mode = mode;
 	}
 
-	/* only device version above V3(include V3), GL can switch CQ/EQ
-	 * period mode.
-	 */
-	if (ae_dev->dev_version >= HNAE3_DEVICE_VERSION_V3) {
+	if (hnae3_ae_dev_cq_supported(ae_dev)) {
 		u32 new_mode;
 		u64 reg;
 

drivers/net/ethernet/hisilicon/hns3/hns3_ethtool.c

@@ -1106,6 +1106,36 @@ static int hns3_check_ringparam(struct net_device *ndev,
 	return 0;
 }
 
+static bool
+hns3_is_ringparam_changed(struct net_device *ndev,
+			  struct ethtool_ringparam *param,
+			  struct kernel_ethtool_ringparam *kernel_param,
+			  struct hns3_ring_param *old_ringparam,
+			  struct hns3_ring_param *new_ringparam)
+{
+	struct hns3_nic_priv *priv = netdev_priv(ndev);
+	struct hnae3_handle *h = priv->ae_handle;
+	u16 queue_num = h->kinfo.num_tqps;
+
+	new_ringparam->tx_desc_num = ALIGN(param->tx_pending,
+					   HNS3_RING_BD_MULTIPLE);
+	new_ringparam->rx_desc_num = ALIGN(param->rx_pending,
+					   HNS3_RING_BD_MULTIPLE);
+	old_ringparam->tx_desc_num = priv->ring[0].desc_num;
+	old_ringparam->rx_desc_num = priv->ring[queue_num].desc_num;
+	old_ringparam->rx_buf_len = priv->ring[queue_num].buf_size;
+	new_ringparam->rx_buf_len = kernel_param->rx_buf_len;
+
+	if (old_ringparam->tx_desc_num == new_ringparam->tx_desc_num &&
+	    old_ringparam->rx_desc_num == new_ringparam->rx_desc_num &&
+	    old_ringparam->rx_buf_len == new_ringparam->rx_buf_len) {
+		netdev_info(ndev, "ringparam not changed\n");
+		return false;
+	}
+
+	return true;
+}
+
 static int hns3_change_rx_buf_len(struct net_device *ndev, u32 rx_buf_len)
 {
 	struct hns3_nic_priv *priv = netdev_priv(ndev);
@@ -1151,14 +1181,11 @@ static int hns3_set_ringparam(struct net_device *ndev,
 			      struct kernel_ethtool_ringparam *kernel_param,
 			      struct netlink_ext_ack *extack)
 {
+	struct hns3_ring_param old_ringparam, new_ringparam;
 	struct hns3_nic_priv *priv = netdev_priv(ndev);
 	struct hnae3_handle *h = priv->ae_handle;
 	struct hns3_enet_ring *tmp_rings;
 	bool if_running = netif_running(ndev);
-	u32 old_tx_desc_num, new_tx_desc_num;
-	u32 old_rx_desc_num, new_rx_desc_num;
-	u16 queue_num = h->kinfo.num_tqps;
-	u32 old_rx_buf_len;
 	int ret, i;
 
 	ret = hns3_check_ringparam(ndev, param, kernel_param);
@@ -1169,43 +1196,36 @@ static int hns3_set_ringparam(struct net_device *ndev,
 	if (ret)
 		return ret;
 
-	/* Hardware requires that its descriptors must be multiple of eight */
-	new_tx_desc_num = ALIGN(param->tx_pending, HNS3_RING_BD_MULTIPLE);
-	new_rx_desc_num = ALIGN(param->rx_pending, HNS3_RING_BD_MULTIPLE);
-	old_tx_desc_num = priv->ring[0].desc_num;
-	old_rx_desc_num = priv->ring[queue_num].desc_num;
-	old_rx_buf_len = priv->ring[queue_num].buf_size;
-	if (old_tx_desc_num == new_tx_desc_num &&
-	    old_rx_desc_num == new_rx_desc_num &&
-	    kernel_param->rx_buf_len == old_rx_buf_len)
+	if (!hns3_is_ringparam_changed(ndev, param, kernel_param,
+				       &old_ringparam, &new_ringparam))
 		return 0;
 
 	tmp_rings = hns3_backup_ringparam(priv);
 	if (!tmp_rings) {
-		netdev_err(ndev,
-			   "backup ring param failed by allocating memory fail\n");
+		netdev_err(ndev, "backup ring param failed by allocating memory fail\n");
 		return -ENOMEM;
 	}
 
 	netdev_info(ndev,
-		    "Changing Tx/Rx ring depth from %u/%u to %u/%u, Changing rx buffer len from %d to %d\n",
-		    old_tx_desc_num, old_rx_desc_num,
-		    new_tx_desc_num, new_rx_desc_num,
-		    old_rx_buf_len, kernel_param->rx_buf_len);
+		    "Changing Tx/Rx ring depth from %u/%u to %u/%u, Changing rx buffer len from %u to %u\n",
+		    old_ringparam.tx_desc_num, old_ringparam.rx_desc_num,
+		    new_ringparam.tx_desc_num, new_ringparam.rx_desc_num,
+		    old_ringparam.rx_buf_len, new_ringparam.rx_buf_len);
 
 	if (if_running)
 		ndev->netdev_ops->ndo_stop(ndev);
 
-	hns3_change_all_ring_bd_num(priv, new_tx_desc_num, new_rx_desc_num);
-	hns3_change_rx_buf_len(ndev, kernel_param->rx_buf_len);
+	hns3_change_all_ring_bd_num(priv, new_ringparam.tx_desc_num,
+				    new_ringparam.rx_desc_num);
+	hns3_change_rx_buf_len(ndev, new_ringparam.rx_buf_len);
 	ret = hns3_init_all_ring(priv);
 	if (ret) {
 		netdev_err(ndev, "set ringparam fail, revert to old value(%d)\n",
 			   ret);
 
-		hns3_change_rx_buf_len(ndev, old_rx_buf_len);
-		hns3_change_all_ring_bd_num(priv, old_tx_desc_num,
-					    old_rx_desc_num);
+		hns3_change_rx_buf_len(ndev, old_ringparam.rx_buf_len);
+		hns3_change_all_ring_bd_num(priv, old_ringparam.tx_desc_num,
+					    old_ringparam.rx_desc_num);
 		for (i = 0; i < h->kinfo.num_tqps * 2; i++)
 			memcpy(&priv->ring[i], &tmp_rings[i],
 			       sizeof(struct hns3_enet_ring));
@@ -1415,11 +1435,33 @@ static int hns3_check_ql_coalesce_param(struct net_device *netdev,
 	return 0;
 }
 
-static int hns3_check_coalesce_para(struct net_device *netdev,
-				    struct ethtool_coalesce *cmd)
+static int
+hns3_check_cqe_coalesce_param(struct net_device *netdev,
+			      struct kernel_ethtool_coalesce *kernel_coal)
+{
+	struct hnae3_handle *handle = hns3_get_handle(netdev);
+	struct hnae3_ae_dev *ae_dev = pci_get_drvdata(handle->pdev);
+
+	if ((kernel_coal->use_cqe_mode_tx || kernel_coal->use_cqe_mode_rx) &&
+	    !hnae3_ae_dev_cq_supported(ae_dev)) {
+		netdev_err(netdev, "coalesced cqe mode is not supported\n");
+		return -EOPNOTSUPP;
+	}
+
+	return 0;
+}
+
+static int
+hns3_check_coalesce_para(struct net_device *netdev,
+			 struct ethtool_coalesce *cmd,
+			 struct kernel_ethtool_coalesce *kernel_coal)
 {
 	int ret;
 
+	ret = hns3_check_cqe_coalesce_param(netdev, kernel_coal);
+	if (ret)
+		return ret;
+
 	ret = hns3_check_gl_coalesce_para(netdev, cmd);
 	if (ret) {
 		netdev_err(netdev,
@@ -1494,7 +1536,7 @@ static int hns3_set_coalesce(struct net_device *netdev,
 	if (hns3_nic_resetting(netdev))
 		return -EBUSY;
 
-	ret = hns3_check_coalesce_para(netdev, cmd);
+	ret = hns3_check_coalesce_para(netdev, cmd, kernel_coal);
 	if (ret)
 		return ret;
 
@@ -1855,23 +1897,27 @@ static int hns3_set_tunable(struct net_device *netdev,
 	case ETHTOOL_TX_COPYBREAK_BUF_SIZE:
 		old_tx_spare_buf_size = h->kinfo.tx_spare_buf_size;
 		new_tx_spare_buf_size = *(u32 *)data;
+		netdev_info(netdev, "request to set tx spare buf size from %u to %u\n",
+			    old_tx_spare_buf_size, new_tx_spare_buf_size);
 		ret = hns3_set_tx_spare_buf_size(netdev, new_tx_spare_buf_size);
 		if (ret ||
 		    (!priv->ring->tx_spare && new_tx_spare_buf_size != 0)) {
 			int ret1;
 
-			netdev_warn(netdev,
-				    "change tx spare buf size fail, revert to old value\n");
+			netdev_warn(netdev, "change tx spare buf size fail, revert to old value\n");
 			ret1 = hns3_set_tx_spare_buf_size(netdev,
 							  old_tx_spare_buf_size);
 			if (ret1) {
-				netdev_err(netdev,
-					   "revert to old tx spare buf size fail\n");
+				netdev_err(netdev, "revert to old tx spare buf size fail\n");
 				return ret1;
 			}
 
 			return ret;
 		}
+
+		netdev_info(netdev, "the actvie tx spare buf size is %u, due to page order\n",
+			    priv->ring->tx_spare->len);
+
 		break;
 	default:
 		ret = -EOPNOTSUPP;

drivers/net/ethernet/hisilicon/hns3/hns3_ethtool.h

@@ -28,4 +28,10 @@ struct hns3_ethtool_link_ext_state_mapping {
 	u8 link_ext_substate;
 };
 
+struct hns3_ring_param {
+	u32 tx_desc_num;
+	u32 rx_desc_num;
+	u32 rx_buf_len;
+};
+
 #endif

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

@@ -1977,7 +1977,7 @@ static int hclge_handle_mpf_ras_error(struct hclge_dev *hdev,
  * @num:  number of extended command structures
  *
  * This function handles all the PF RAS errors in the
- * hw register/s using command.
+ * hw registers using command.
  */
 static int hclge_handle_pf_ras_error(struct hclge_dev *hdev,
 				     struct hclge_desc *desc,

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

@@ -10449,6 +10449,9 @@ int hclge_set_vport_mtu(struct hclge_vport *vport, int 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) {
+			dev_err(&hdev->pdev->dev,
+				"failed to set pf mtu for less than vport %d, mps = %u.\n",
+				i, hdev->vport[i].mps);
 			mutex_unlock(&hdev->vport_lock);
 			return -EINVAL;
 		}

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

@@ -102,7 +102,7 @@ static int hclge_send_mbx_msg(struct hclge_vport *vport, u8 *msg, u16 msg_len,
 	resp_pf_to_vf->msg_len = msg_len;
 	resp_pf_to_vf->msg.code = mbx_opcode;
 
-	memcpy(&resp_pf_to_vf->msg.vf_mbx_msg_code, msg, msg_len);
+	memcpy(resp_pf_to_vf->msg.msg_data, msg, msg_len);
 
 	trace_hclge_pf_mbx_send(hdev, resp_pf_to_vf);
 

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

@@ -2963,7 +2963,7 @@ static int hclgevf_init_hdev(struct hclgevf_dev *hdev)
 		goto err_config;
 	}
 
-	/* ensure vf tbl list as empty before init*/
+	/* ensure vf tbl list as empty before init */
 	ret = hclgevf_clear_vport_list(hdev);
 	if (ret) {
 		dev_err(&pdev->dev,
@@ -3315,7 +3315,7 @@ static void hclgevf_get_regs(struct hnae3_handle *handle, u32 *version,
 		for (i = 0; i < reg_um; i++)
 			*reg++ = hclgevf_read_dev(&hdev->hw,
 						  ring_reg_addr_list[i] +
-						  0x200 * j);
+						  HCLGEVF_TQP_REG_SIZE * j);
 		for (i = 0; i < separator_num; i++)
 			*reg++ = SEPARATOR_VALUE;
 	}

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

@@ -17,7 +17,7 @@ static int hclgevf_resp_to_errno(u16 resp_code)
 static void hclgevf_reset_mbx_resp_status(struct hclgevf_dev *hdev)
 {
 	/* this function should be called with mbx_resp.mbx_mutex held
-	 * to prtect the received_response from race condition
+	 * to protect the received_response from race condition
 	 */
 	hdev->mbx_resp.received_resp  = false;
 	hdev->mbx_resp.origin_mbx_msg = 0;
@@ -32,8 +32,10 @@ static void hclgevf_reset_mbx_resp_status(struct hclgevf_dev *hdev)
 /* hclgevf_get_mbx_resp: used to get a response from PF after VF sends a mailbox
  * message to PF.
  * @hdev: pointer to struct hclgevf_dev
- * @resp_msg: pointer to store the original message type and response status
- * @len: the resp_msg data array length.
+ * @code0: the message opcode VF send to PF.
+ * @code1: the message sub-opcode VF send to PF.
+ * @resp_data: pointer to store response data from PF to VF.
+ * @resp_len: the length of resp_data from PF to VF.
  */
 static int hclgevf_get_mbx_resp(struct hclgevf_dev *hdev, u16 code0, u16 code1,
 				u8 *resp_data, u16 resp_len)