Merge branch 'net-hns3-there-are-some-cleanup-for-the-hns3-ethernet-driver'

Hao Lan says:

====================
net: hns3: There are some cleanup for the HNS3 ethernet driver

There are some cleanup for the HNS3 ethernet driver.
====================

Link: https://lore.kernel.org/r/20230621123309.34381-1-lanhao@huawei.comSigned-off-by: Paolo Abeni <pabeni@redhat.com>

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

@@ -647,8 +647,7 @@ struct hnae3_ae_ops {
 	int (*rm_mc_addr)(struct hnae3_handle *handle,
 			  const unsigned char *addr);
 	void (*set_tso_stats)(struct hnae3_handle *handle, int enable);
-	void (*update_stats)(struct hnae3_handle *handle,
-			     struct net_device_stats *net_stats);
+	void (*update_stats)(struct hnae3_handle *handle);
 	void (*get_stats)(struct hnae3_handle *handle, u64 *data);
 	void (*get_mac_stats)(struct hnae3_handle *handle,
 			      struct hns3_mac_stats *mac_stats);

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

@@ -305,8 +305,7 @@ int hclge_comm_set_rss_indir_table(struct hnae3_ae_dev *ae_dev,
 	return 0;
 }
 
-int hclge_comm_set_rss_input_tuple(struct hnae3_handle *nic,
-				   struct hclge_comm_hw *hw, bool is_pf,
+int hclge_comm_set_rss_input_tuple(struct hclge_comm_hw *hw,
 				   struct hclge_comm_rss_cfg *rss_cfg)
 {
 	struct hclge_comm_rss_input_tuple_cmd *req;

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

@@ -112,8 +112,7 @@ int hclge_comm_init_rss_tuple_cmd(struct hclge_comm_rss_cfg *rss_cfg,
 				  struct hnae3_ae_dev *ae_dev,
 				  struct hclge_comm_rss_input_tuple_cmd *req);
 u64 hclge_comm_convert_rss_tuple(u8 tuple_sets);
-int hclge_comm_set_rss_input_tuple(struct hnae3_handle *nic,
-				   struct hclge_comm_hw *hw, bool is_pf,
+int hclge_comm_set_rss_input_tuple(struct hclge_comm_hw *hw,
 				   struct hclge_comm_rss_cfg *rss_cfg);
 int hclge_comm_set_rss_indir_table(struct hnae3_ae_dev *ae_dev,
 				   struct hclge_comm_hw *hw, const u16 *indir);

drivers/net/ethernet/hisilicon/hns3/hns3_debugfs.c

@@ -438,19 +438,36 @@ static void hns3_dbg_fill_content(char *content, u16 len,
 				  const struct hns3_dbg_item *items,
 				  const char **result, u16 size)
 {
+#define HNS3_DBG_LINE_END_LEN	2
 	char *pos = content;
+	u16 item_len;
 	u16 i;
 
+	if (!len) {
+		return;
+	} else if (len <= HNS3_DBG_LINE_END_LEN) {
+		*pos++ = '\0';
+		return;
+	}
+
 	memset(content, ' ', len);
-	for (i = 0; i < size; i++) {
-		if (result)
-			strncpy(pos, result[i], strlen(result[i]));
-		else
-			strncpy(pos, items[i].name, strlen(items[i].name));
+	len -= HNS3_DBG_LINE_END_LEN;
 
-		pos += strlen(items[i].name) + items[i].interval;
+	for (i = 0; i < size; i++) {
+		item_len = strlen(items[i].name) + items[i].interval;
+		if (len < item_len)
+			break;
+
+		if (result) {
+			if (item_len < strlen(result[i]))
+				break;
+			strscpy(pos, result[i], strlen(result[i]));
+		} else {
+			strscpy(pos, items[i].name, strlen(items[i].name));
+		}
+		pos += item_len;
+		len -= item_len;
 	}
-
 	*pos++ = '\n';
 	*pos++ = '\0';
 }
@@ -941,8 +958,7 @@ static const struct hns3_dbg_item tx_bd_info_items[] = {
 	{ "MSS_HW_CSUM", 0 },
 };
 
-static void hns3_dump_tx_bd_info(struct hns3_nic_priv *priv,
-				 struct hns3_desc *desc, char **result, int idx)
+static void hns3_dump_tx_bd_info(struct hns3_desc *desc, char **result, int idx)
 {
 	unsigned int j = 0;
 
@@ -991,7 +1007,7 @@ static int hns3_dbg_tx_bd_info(struct hns3_dbg_data *d, char *buf, int len)
 	for (i = 0; i < ring->desc_num; i++) {
 		desc = &ring->desc[i];
 
-		hns3_dump_tx_bd_info(priv, desc, result, i);
+		hns3_dump_tx_bd_info(desc, result, i);
 		hns3_dbg_fill_content(content, sizeof(content),
 				      tx_bd_info_items, (const char **)result,
 				      ARRAY_SIZE(tx_bd_info_items));

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

@@ -2538,7 +2538,7 @@ static void hns3_nic_get_stats64(struct net_device *netdev,
 	if (test_bit(HNS3_NIC_STATE_DOWN, &priv->state))
 		return;
 
-	handle->ae_algo->ops->update_stats(handle, &netdev->stats);
+	handle->ae_algo->ops->update_stats(handle);
 
 	memset(&ring_total_stats, 0, sizeof(ring_total_stats));
 	for (idx = 0; idx < queue_num; idx++) {

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

@@ -228,7 +228,7 @@ static u32 hns3_lb_check_rx_ring(struct hns3_nic_priv *priv, u32 budget)
 }
 
 static void hns3_lb_clear_tx_ring(struct hns3_nic_priv *priv, u32 start_ringid,
-				  u32 end_ringid, u32 budget)
+				  u32 end_ringid)
 {
 	u32 i;
 
@@ -295,8 +295,7 @@ static int hns3_lp_run_test(struct net_device *ndev, enum hnae3_loop mode)
 
 out:
 	hns3_lb_clear_tx_ring(priv, HNS3_NIC_LB_TEST_RING_ID,
-			      HNS3_NIC_LB_TEST_RING_ID,
-			      HNS3_NIC_LB_TEST_PKT_NUM);
+			      HNS3_NIC_LB_TEST_RING_ID);
 
 	kfree_skb(skb);
 	return ret_val;
@@ -618,7 +617,7 @@ static void hns3_get_stats(struct net_device *netdev,
 		return;
 	}
 
-	h->ae_algo->ops->update_stats(h, &netdev->stats);
+	h->ae_algo->ops->update_stats(h);
 
 	/* get per-queue stats */
 	p = hns3_get_stats_tqps(h, p);

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

@@ -88,16 +88,35 @@ static void hclge_dbg_fill_content(char *content, u16 len,
 				   const struct hclge_dbg_item *items,
 				   const char **result, u16 size)
 {
+#define HCLGE_DBG_LINE_END_LEN	2
 	char *pos = content;
+	u16 item_len;
 	u16 i;
 
+	if (!len) {
+		return;
+	} else if (len <= HCLGE_DBG_LINE_END_LEN) {
+		*pos++ = '\0';
+		return;
+	}
+
 	memset(content, ' ', len);
+	len -= HCLGE_DBG_LINE_END_LEN;
+
 	for (i = 0; i < size; i++) {
-		if (result)
-			strncpy(pos, result[i], strlen(result[i]));
-		else
-			strncpy(pos, items[i].name, strlen(items[i].name));
-		pos += strlen(items[i].name) + items[i].interval;
+		item_len = strlen(items[i].name) + items[i].interval;
+		if (len < item_len)
+			break;
+
+		if (result) {
+			if (item_len < strlen(result[i]))
+				break;
+			strscpy(pos, result[i], strlen(result[i]));
+		} else {
+			strscpy(pos, items[i].name, strlen(items[i].name));
+		}
+		pos += item_len;
+		len -= item_len;
 	}
 	*pos++ = '\n';
 	*pos++ = '\0';

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

@@ -689,8 +689,7 @@ static void hclge_update_stats_for_all(struct hclge_dev *hdev)
 			"Update MAC stats fail, status = %d.\n", status);
 }
 
-static void hclge_update_stats(struct hnae3_handle *handle,
-			       struct net_device_stats *net_stats)
+static void hclge_update_stats(struct hnae3_handle *handle)
 {
 	struct hclge_vport *vport = hclge_get_vport(handle);
 	struct hclge_dev *hdev = vport->back;
@@ -824,7 +823,7 @@ static void hclge_get_mac_stat(struct hnae3_handle *handle,
 	struct hclge_vport *vport = hclge_get_vport(handle);
 	struct hclge_dev *hdev = vport->back;
 
-	hclge_update_stats(handle, NULL);
+	hclge_update_stats(handle);
 
 	mac_stats->tx_pause_cnt = hdev->mac_stats.mac_tx_mac_pause_num;
 	mac_stats->rx_pause_cnt = hdev->mac_stats.mac_rx_mac_pause_num;
@@ -4965,9 +4964,7 @@ int hclge_rss_init_hw(struct hclge_dev *hdev)
 	if (ret)
 		return ret;
 
-	ret = hclge_comm_set_rss_input_tuple(&hdev->vport[0].nic,
-					     &hdev->hw.hw, true,
-					     &hdev->rss_cfg);
+	ret = hclge_comm_set_rss_input_tuple(&hdev->hw.hw, &hdev->rss_cfg);
 	if (ret)
 		return ret;
 
@@ -6243,8 +6240,7 @@ static int hclge_fd_check_spec(struct hclge_dev *hdev,
 	return hclge_fd_check_ext_tuple(hdev, fs, unused_tuple);
 }
 
-static void hclge_fd_get_tcpip4_tuple(struct hclge_dev *hdev,
-				      struct ethtool_rx_flow_spec *fs,
+static void hclge_fd_get_tcpip4_tuple(struct ethtool_rx_flow_spec *fs,
 				      struct hclge_fd_rule *rule, u8 ip_proto)
 {
 	rule->tuples.src_ip[IPV4_INDEX] =
@@ -6273,8 +6269,7 @@ static void hclge_fd_get_tcpip4_tuple(struct hclge_dev *hdev,
 	rule->tuples_mask.ip_proto = 0xFF;
 }
 
-static void hclge_fd_get_ip4_tuple(struct hclge_dev *hdev,
-				   struct ethtool_rx_flow_spec *fs,
+static void hclge_fd_get_ip4_tuple(struct ethtool_rx_flow_spec *fs,
 				   struct hclge_fd_rule *rule)
 {
 	rule->tuples.src_ip[IPV4_INDEX] =
@@ -6297,8 +6292,7 @@ static void hclge_fd_get_ip4_tuple(struct hclge_dev *hdev,
 	rule->tuples_mask.ether_proto = 0xFFFF;
 }
 
-static void hclge_fd_get_tcpip6_tuple(struct hclge_dev *hdev,
-				      struct ethtool_rx_flow_spec *fs,
+static void hclge_fd_get_tcpip6_tuple(struct ethtool_rx_flow_spec *fs,
 				      struct hclge_fd_rule *rule, u8 ip_proto)
 {
 	be32_to_cpu_array(rule->tuples.src_ip, fs->h_u.tcp_ip6_spec.ip6src,
@@ -6327,8 +6321,7 @@ static void hclge_fd_get_tcpip6_tuple(struct hclge_dev *hdev,
 	rule->tuples_mask.ip_proto = 0xFF;
 }
 
-static void hclge_fd_get_ip6_tuple(struct hclge_dev *hdev,
-				   struct ethtool_rx_flow_spec *fs,
+static void hclge_fd_get_ip6_tuple(struct ethtool_rx_flow_spec *fs,
 				   struct hclge_fd_rule *rule)
 {
 	be32_to_cpu_array(rule->tuples.src_ip, fs->h_u.usr_ip6_spec.ip6src,
@@ -6351,8 +6344,7 @@ static void hclge_fd_get_ip6_tuple(struct hclge_dev *hdev,
 	rule->tuples_mask.ether_proto = 0xFFFF;
 }
 
-static void hclge_fd_get_ether_tuple(struct hclge_dev *hdev,
-				     struct ethtool_rx_flow_spec *fs,
+static void hclge_fd_get_ether_tuple(struct ethtool_rx_flow_spec *fs,
 				     struct hclge_fd_rule *rule)
 {
 	ether_addr_copy(rule->tuples.src_mac, fs->h_u.ether_spec.h_source);
@@ -6388,8 +6380,7 @@ static void hclge_fd_get_user_def_tuple(struct hclge_fd_user_def_info *info,
 	rule->ep.user_def = *info;
 }
 
-static int hclge_fd_get_tuple(struct hclge_dev *hdev,
-			      struct ethtool_rx_flow_spec *fs,
+static int hclge_fd_get_tuple(struct ethtool_rx_flow_spec *fs,
 			      struct hclge_fd_rule *rule,
 			      struct hclge_fd_user_def_info *info)
 {
@@ -6397,31 +6388,31 @@ static int hclge_fd_get_tuple(struct hclge_dev *hdev,
 
 	switch (flow_type) {
 	case SCTP_V4_FLOW:
-		hclge_fd_get_tcpip4_tuple(hdev, fs, rule, IPPROTO_SCTP);
+		hclge_fd_get_tcpip4_tuple(fs, rule, IPPROTO_SCTP);
 		break;
 	case TCP_V4_FLOW:
-		hclge_fd_get_tcpip4_tuple(hdev, fs, rule, IPPROTO_TCP);
+		hclge_fd_get_tcpip4_tuple(fs, rule, IPPROTO_TCP);
 		break;
 	case UDP_V4_FLOW:
-		hclge_fd_get_tcpip4_tuple(hdev, fs, rule, IPPROTO_UDP);
+		hclge_fd_get_tcpip4_tuple(fs, rule, IPPROTO_UDP);
 		break;
 	case IP_USER_FLOW:
-		hclge_fd_get_ip4_tuple(hdev, fs, rule);
+		hclge_fd_get_ip4_tuple(fs, rule);
 		break;
 	case SCTP_V6_FLOW:
-		hclge_fd_get_tcpip6_tuple(hdev, fs, rule, IPPROTO_SCTP);
+		hclge_fd_get_tcpip6_tuple(fs, rule, IPPROTO_SCTP);
 		break;
 	case TCP_V6_FLOW:
-		hclge_fd_get_tcpip6_tuple(hdev, fs, rule, IPPROTO_TCP);
+		hclge_fd_get_tcpip6_tuple(fs, rule, IPPROTO_TCP);
 		break;
 	case UDP_V6_FLOW:
-		hclge_fd_get_tcpip6_tuple(hdev, fs, rule, IPPROTO_UDP);
+		hclge_fd_get_tcpip6_tuple(fs, rule, IPPROTO_UDP);
 		break;
 	case IPV6_USER_FLOW:
-		hclge_fd_get_ip6_tuple(hdev, fs, rule);
+		hclge_fd_get_ip6_tuple(fs, rule);
 		break;
 	case ETHER_FLOW:
-		hclge_fd_get_ether_tuple(hdev, fs, rule);
+		hclge_fd_get_ether_tuple(fs, rule);
 		break;
 	default:
 		return -EOPNOTSUPP;
@@ -6578,7 +6569,7 @@ static int hclge_add_fd_entry(struct hnae3_handle *handle,
 	if (!rule)
 		return -ENOMEM;
 
-	ret = hclge_fd_get_tuple(hdev, fs, rule, &info);
+	ret = hclge_fd_get_tuple(fs, rule, &info);
 	if (ret) {
 		kfree(rule);
 		return ret;

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

@@ -835,15 +835,10 @@ struct hclge_vf_vlan_cfg {
  * Then for input key(k) and mask(v), we can calculate the value by
  * the formulae:
  *	x = (~k) & v
- *	y = (k ^ ~v) & k
+ *	y = k & v
  */
-#define calc_x(x, k, v) (x = ~(k) & (v))
-#define calc_y(y, k, v) \
-	do { \
-		const typeof(k) _k_ = (k); \
-		const typeof(v) _v_ = (v); \
-		(y) = (_k_ ^ ~_v_) & (_k_); \
-	} while (0)
+#define calc_x(x, k, v) ((x) = ~(k) & (v))
+#define calc_y(y, k, v) ((y) = (k) & (v))
 
 #define HCLGE_MAC_STATS_FIELD_OFF(f) (offsetof(struct hclge_mac_stats, f))
 #define HCLGE_STATS_READ(p, offset) (*(u64 *)((u8 *)(p) + (offset)))

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

@@ -121,8 +121,7 @@ static struct hclgevf_dev *hclgevf_ae_get_hdev(struct hnae3_handle *handle)
 		return container_of(handle, struct hclgevf_dev, nic);
 }
 
-static void hclgevf_update_stats(struct hnae3_handle *handle,
-				 struct net_device_stats *net_stats)
+static void hclgevf_update_stats(struct hnae3_handle *handle)
 {
 	struct hclgevf_dev *hdev = hclgevf_ae_get_hdev(handle);
 	int status;
@@ -1645,8 +1644,7 @@ static void hclgevf_reset(struct hclgevf_dev *hdev)
 	hclgevf_reset_err_handle(hdev);
 }
 
-static enum hnae3_reset_type hclgevf_get_reset_level(struct hclgevf_dev *hdev,
-						     unsigned long *addr)
+static enum hnae3_reset_type hclgevf_get_reset_level(unsigned long *addr)
 {
 	enum hnae3_reset_type rst_level = HNAE3_NONE_RESET;
 
@@ -1685,8 +1683,7 @@ static void hclgevf_reset_event(struct pci_dev *pdev,
 
 	if (hdev->default_reset_request)
 		hdev->reset_level =
-			hclgevf_get_reset_level(hdev,
-						&hdev->default_reset_request);
+			hclgevf_get_reset_level(&hdev->default_reset_request);
 	else
 		hdev->reset_level = HNAE3_VF_FUNC_RESET;
 
@@ -1828,7 +1825,7 @@ static void hclgevf_reset_service_task(struct hclgevf_dev *hdev)
 
 		hdev->last_reset_time = jiffies;
 		hdev->reset_type =
-			hclgevf_get_reset_level(hdev, &hdev->reset_pending);
+			hclgevf_get_reset_level(&hdev->reset_pending);
 		if (hdev->reset_type != HNAE3_NONE_RESET)
 			hclgevf_reset(hdev);
 	} else if (test_and_clear_bit(HCLGEVF_RESET_REQUESTED,
@@ -2160,8 +2157,7 @@ static int hclgevf_rss_init_hw(struct hclgevf_dev *hdev)
 		if (ret)
 			return ret;
 
-		ret = hclge_comm_set_rss_input_tuple(&hdev->nic, &hdev->hw.hw,
-						     false, rss_cfg);
+		ret = hclge_comm_set_rss_input_tuple(&hdev->hw.hw, rss_cfg);
 		if (ret)
 			return ret;
 	}