[PATCH V3 net-next 7/8] net: hns3: Add Ethtool support to HNS3 driver

[Salil Mehta]

This patch adds the support of the Ethtool interface to
the HNS3 Ethernet driver. Various commands to read the
statistics, configure the offloading, loopback selftest etc.
are supported.

Signed-off-by: Daode Huang <huangdaode@xxxxxxxxxxxxx>
Signed-off-by: lipeng <lipeng321@xxxxxxxxxx>
Signed-off-by: Salil Mehta <salil.mehta@xxxxxxxxxx>
Signed-off-by: Yisen Zhuang <yisen.zhuang@xxxxxxxxxx>
---
Patch V3: Address below comments:
 1. Stephen Hemminger: https://lkml.org/lkml/2017/6/13/974
 2. Andrew Lunn: https://lkml.org/lkml/2017/6/13/1037
Patch V2: No change
Patch V1: Initial Submit
---
 .../ethernet/hisilicon/hns3/hns3pf/hns3_ethtool.c  | 878 +++++++++++++++++++++
 1 file changed, 878 insertions(+)
 create mode 100644 drivers/net/ethernet/hisilicon/hns3/hns3pf/hns3_ethtool.c

diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hns3_ethtool.c b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hns3_ethtool.c
new file mode 100644
index 0000000..9cc7712
--- /dev/null
+++ b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hns3_ethtool.c
@@ -0,0 +1,878 @@
+/*
+ * Copyright (c) 2016~2017 Hisilicon Limited.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ */
+
+#include <linux/etherdevice.h>
+#include "hns3_enet.h"
+
+struct hns3_stats {
+	char stats_string[ETH_GSTRING_LEN];
+	int stats_size;
+	int stats_offset;
+};
+
+/* netdev related stats */
+#define HNS3_NETDEV_STAT(_string, _member)			\
+	{ _string,						\
+	  FIELD_SIZEOF(struct rtnl_link_stats64, _member),	\
+	  offsetof(struct rtnl_link_stats64, _member),		\
+	}
+
+static const struct hns3_stats hns3_netdev_stats[] = {
+	/* misc. Rx/Tx statistics */
+	HNS3_NETDEV_STAT("rx_packets", rx_packets),
+	HNS3_NETDEV_STAT("tx_packets", tx_packets),
+	HNS3_NETDEV_STAT("rx_bytes", rx_bytes),
+	HNS3_NETDEV_STAT("tx_bytes", tx_bytes),
+	HNS3_NETDEV_STAT("rx_errors", rx_errors),
+	HNS3_NETDEV_STAT("tx_errors", tx_errors),
+	HNS3_NETDEV_STAT("rx_dropped", rx_dropped),
+	HNS3_NETDEV_STAT("tx_dropped", tx_dropped),
+	HNS3_NETDEV_STAT("multicast", multicast),
+	HNS3_NETDEV_STAT("collisions", collisions),
+
+	/* detailed Rx errors */
+	HNS3_NETDEV_STAT("rx_length_errors", rx_length_errors),
+	HNS3_NETDEV_STAT("rx_over_errors", rx_over_errors),
+	HNS3_NETDEV_STAT("rx_crc_errors", rx_crc_errors),
+	HNS3_NETDEV_STAT("rx_frame_errors", rx_frame_errors),
+	HNS3_NETDEV_STAT("rx_fifo_errors", rx_fifo_errors),
+	HNS3_NETDEV_STAT("rx_missed_errors", rx_missed_errors),
+
+	/* detailed Tx errors */
+	HNS3_NETDEV_STAT("tx_aborted_errors", tx_aborted_errors),
+	HNS3_NETDEV_STAT("tx_carrier_errors", tx_carrier_errors),
+	HNS3_NETDEV_STAT("tx_fifo_errors", tx_fifo_errors),
+	HNS3_NETDEV_STAT("tx_heartbeat_errors", tx_heartbeat_errors),
+	HNS3_NETDEV_STAT("tx_window_errors", tx_window_errors),
+
+	/* for cslip etc */
+	HNS3_NETDEV_STAT("rx_compressed", rx_compressed),
+	HNS3_NETDEV_STAT("tx_compressed", tx_compressed),
+};
+
+#define HNS3_NETDEV_STATS_COUNT ARRAY_SIZE(hns3_netdev_stats)
+
+/* tqp related stats */
+#define HNS3_TQP_STAT(_string, _member)				\
+	{ _string,						\
+	  FIELD_SIZEOF(struct ring_stats, _member),		\
+	  offsetof(struct hns3_enet_ring, stats),	\
+	}
+
+static const struct hns3_stats hns3_txq_stats[] = {
+	/* Tx per-queue statistics */
+	HNS3_TQP_STAT("tx_io_err_cnt", io_err_cnt),
+	HNS3_TQP_STAT("tx_sw_err_cnt", sw_err_cnt),
+	HNS3_TQP_STAT("tx_seg_pkt_cnt", seg_pkt_cnt),
+	HNS3_TQP_STAT("tx_pkts", tx_pkts),
+	HNS3_TQP_STAT("tx_bytes", tx_bytes),
+	HNS3_TQP_STAT("tx_err_cnt", tx_err_cnt),
+	HNS3_TQP_STAT("tx_restart_queue", restart_queue),
+	HNS3_TQP_STAT("tx_busy", tx_busy),
+};
+
+#define HNS3_TXQ_STATS_COUNT ARRAY_SIZE(hns3_txq_stats)
+
+static const struct hns3_stats hns3_rxq_stats[] = {
+	/* Rx per-queue statistics */
+	HNS3_TQP_STAT("rx_io_err_cnt", io_err_cnt),
+	HNS3_TQP_STAT("rx_sw_err_cnt", sw_err_cnt),
+	HNS3_TQP_STAT("rx_seg_pkt_cnt", seg_pkt_cnt),
+	HNS3_TQP_STAT("rx_pkts", rx_pkts),
+	HNS3_TQP_STAT("rx_bytes", rx_bytes),
+	HNS3_TQP_STAT("rx_err_cnt", rx_err_cnt),
+	HNS3_TQP_STAT("rx_reuse_pg_cnt", reuse_pg_cnt),
+	HNS3_TQP_STAT("rx_err_pkt_len", err_pkt_len),
+	HNS3_TQP_STAT("rx_non_vld_descs", non_vld_descs),
+	HNS3_TQP_STAT("rx_err_bd_num", err_bd_num),
+	HNS3_TQP_STAT("rx_l2_err", l2_err),
+	HNS3_TQP_STAT("rx_l3l4_csum_err", l3l4_csum_err),
+};
+
+#define HNS3_RXQ_STATS_COUNT ARRAY_SIZE(hns3_rxq_stats)
+
+#define HNS3_TQP_STATS_COUNT (HNS3_TXQ_STATS_COUNT + HNS3_RXQ_STATS_COUNT)
+
+struct hns3_link_mode_mapping {
+	u32 hns3_link_mode;
+	u32 ethtool_link_mode;
+};
+
+static const struct hns3_link_mode_mapping hns3_lm_map[] = {
+	{HNS3_LM_FIBRE_BIT, ETHTOOL_LINK_MODE_FIBRE_BIT},
+	{HNS3_LM_AUTONEG_BIT, ETHTOOL_LINK_MODE_Autoneg_BIT},
+	{HNS3_LM_TP_BIT, ETHTOOL_LINK_MODE_TP_BIT},
+	{HNS3_LM_PAUSE_BIT, ETHTOOL_LINK_MODE_Pause_BIT},
+	{HNS3_LM_BACKPLANE_BIT, ETHTOOL_LINK_MODE_Backplane_BIT},
+	{HNS3_LM_10BASET_HALF_BIT, ETHTOOL_LINK_MODE_10baseT_Half_BIT},
+	{HNS3_LM_10BASET_FULL_BIT, ETHTOOL_LINK_MODE_10baseT_Full_BIT},
+	{HNS3_LM_100BASET_HALF_BIT, ETHTOOL_LINK_MODE_100baseT_Half_BIT},
+	{HNS3_LM_100BASET_FULL_BIT, ETHTOOL_LINK_MODE_100baseT_Full_BIT},
+	{HNS3_LM_1000BASET_FULL_BIT, ETHTOOL_LINK_MODE_1000baseT_Full_BIT},
+};
+
+#define HNS3_DRV_TO_ETHTOOL_CAPS(caps, lk_ksettings, name)	\
+{								\
+	int i;							\
+								\
+	for (i = 0; i < ARRAY_SIZE(hns3_lm_map); i++) {		\
+		if ((caps) & hns3_lm_map[i].hns3_link_mode)	\
+			__set_bit(hns3_lm_map[i].ethtool_link_mode,\
+				  (lk_ksettings)->link_modes.name); \
+	}							\
+}
+
+static int hns3_lp_setup(struct net_device *ndev, enum hnae3_loop loop)
+{
+	struct hns3_nic_priv *priv = netdev_priv(ndev);
+	struct hnae3_handle *h = priv->ae_handle;
+	struct hnae3_ae_ops *ops = h->ae_algo->ops;
+	int ret = 0;
+
+	switch (loop) {
+	case HNAE3_MAC_INTER_LOOP_MAC:
+		if (ops->set_loopback)
+			ret = ops->set_loopback(h, loop, true);
+		break;
+	case HNAE3_MAC_LOOP_NONE:
+		if (ops->set_loopback)
+			ret = ops->set_loopback(h,
+				HNAE3_MAC_INTER_LOOP_MAC, false);
+		break;
+	default:
+		ret = -EINVAL;
+		break;
+	}
+
+	if (!ret) {
+		if (loop == HNAE3_MAC_LOOP_NONE)
+			ops->set_promisc_mode(h, ndev->flags & IFF_PROMISC);
+		else
+			ops->set_promisc_mode(h, 1);
+	}
+	return ret;
+}
+
+static int hns3_lp_up(struct net_device *ndev, enum hnae3_loop loop_mode)
+{
+	struct hns3_nic_priv *priv = netdev_priv(ndev);
+	struct hnae3_handle *h = priv->ae_handle;
+	struct hnae3_ae_ops *ops = h->ae_algo->ops;
+	int ret;
+
+	if (ops->start) {
+		ret = ops->start(h);
+		if (ret) {
+			netdev_err(ndev,
+				   "error: hns3_lb_up start ops return error:%d\n",
+				   ret);
+			return ret;
+		}
+	} else {
+		netdev_err(ndev, "error: hns3_lb_up ops do NOT have start\n");
+	}
+
+	ret = hns3_lp_setup(ndev, loop_mode);
+	if (ret)
+		return ret;
+
+	msleep(200);
+
+	return 0;
+}
+
+static int hns3_lp_down(struct net_device *ndev)
+{
+	struct hns3_nic_priv *priv = netdev_priv(ndev);
+	struct hnae3_handle *h = priv->ae_handle;
+	int ret;
+
+	ret = hns3_lp_setup(ndev, HNAE3_MAC_LOOP_NONE);
+	if (ret)
+		netdev_err(ndev, "lb_setup return error(%d)!\n",
+			   ret);
+
+	if (h->ae_algo->ops->stop)
+		h->ae_algo->ops->stop(h);
+
+	usleep_range(10000, 20000);
+
+	return 0;
+}
+
+static void hns3_lp_setup_skb(struct sk_buff *skb)
+{
+	struct hns3_nic_priv *priv;
+	unsigned int frame_size;
+	struct net_device *ndev;
+
+	ndev = skb->dev;
+	priv = netdev_priv(ndev);
+	frame_size = skb->len;
+	memset(skb->data, 0xFF, frame_size);
+	ether_addr_copy(skb->data, ndev->dev_addr);
+	skb->data[5] += 0x1f;
+	frame_size &= ~1ul;
+	memset(&skb->data[frame_size / 2], 0xAA, frame_size / 2 - 1);
+	memset(&skb->data[frame_size / 2 + 10], 0xBE, frame_size / 2 - 11);
+	memset(&skb->data[frame_size / 2 + 12], 0xAF, frame_size / 2 - 13);
+}
+
+static bool hns3_lb_check_skb_data(struct sk_buff *skb)
+{
+	unsigned int frame_size;
+	char buff[33]; /* 32B data and the last character '\0' */
+	int check_ok;
+	u32 i;
+
+	frame_size = skb->len;
+	frame_size &= ~1ul;
+	check_ok = 0;
+	if (*(skb->data + 10) == 0xFF) { /* for rx check frame*/
+		if ((*(skb->data + frame_size / 2 + 10) == 0xBE) &&
+		    (*(skb->data + frame_size / 2 + 12) == 0xAF))
+			check_ok = 1;
+	}
+
+	if (!check_ok) {
+		for (i = 0; i < skb->len; i++) {
+			snprintf(buff + i % 16 * 2, 3, /* tailing \0*/
+				 "%02x", *(skb->data + i));
+			if ((i % 16 == 15) || (i == skb->len - 1))
+				pr_info("%s\n", buff);
+		}
+		return false;
+	}
+	return true;
+}
+
+static u32 hns3_lb_check_rx_ring(struct hns3_nic_priv *priv,
+				 u32 start_ringid,
+				 u32 end_ringid,
+				 u32 budget)
+{
+	struct hns3_enet_ring *ring;
+	struct sk_buff *skb = NULL;
+	u32 rcv_good_pkt_cnt = 0;
+	int status;
+	u32 i;
+
+	struct net_device *ndev = priv->netdev;
+	unsigned long rx_packets = ndev->stats.rx_packets;
+	unsigned long rx_bytes = ndev->stats.rx_bytes;
+	unsigned long rx_frame_errors = ndev->stats.rx_frame_errors;
+
+	for (i = start_ringid; i <= end_ringid; i++) {
+		skb = NULL;
+		ring = priv->ring_data[i].ring;
+		status = hns3_clean_rx_ring_ex(ring, &skb, budget);
+		if (status > 0 && skb) {
+			if (hns3_lb_check_skb_data(skb))
+				rcv_good_pkt_cnt += 1;
+
+			dev_kfree_skb_any(skb);
+		}
+	}
+	ndev->stats.rx_packets = rx_packets;
+	ndev->stats.rx_bytes = rx_bytes;
+	ndev->stats.rx_frame_errors = rx_frame_errors;
+	return rcv_good_pkt_cnt;
+}
+
+static void hns3_lb_clear_tx_ring(struct hns3_nic_priv *priv,
+				  u32 start_ringid,
+				  u32 end_ringid,
+				  u32 budget)
+{
+	struct net_device *ndev = priv->netdev;
+	unsigned long rx_frame_errors = ndev->stats.rx_frame_errors;
+	unsigned long rx_packets = ndev->stats.rx_packets;
+	unsigned long rx_bytes = ndev->stats.rx_bytes;
+	struct netdev_queue *dev_queue;
+	struct hns3_enet_ring *ring;
+	int status;
+	u32 i;
+
+	for (i = start_ringid; i <= end_ringid; i++) {
+		ring = priv->ring_data[i].ring;
+		status = hns3_clean_tx_ring(ring, budget);
+		if (status)
+			dev_err(priv->dev,
+				"hns3_clean_tx_ring failed ,status:%d\n",
+				status);
+
+		dev_queue = netdev_get_tx_queue(ndev,
+						priv->ring_data[i].queue_index);
+		netdev_tx_reset_queue(dev_queue);
+	}
+
+	ndev->stats.rx_packets = rx_packets;
+	ndev->stats.rx_bytes = rx_bytes;
+	ndev->stats.rx_frame_errors = rx_frame_errors;
+}
+
+/* hns3_lp_run_test -  run loopback test
+ * @ndev: net device
+ * @mode: loopback type
+ */
+static int hns3_lp_run_test(struct net_device *ndev, enum hnae3_loop mode)
+{
+#define HNS3_NIC_LB_TEST_PKT_NUM 1
+#define HNS3_NIC_LB_TEST_RING_ID 0
+#define HNS3_NIC_LB_TEST_FRAME_SIZE 128
+/* Nic loopback test err  */
+#define HNS3_NIC_LB_TEST_NO_MEM_ERR 1
+#define HNS3_NIC_LB_TEST_TX_CNT_ERR 2
+#define HNS3_NIC_LB_TEST_RX_CNT_ERR 3
+#define HNS3_NIC_LB_TEST_RX_PKG_ERR 4
+	struct hns3_nic_priv *priv = netdev_priv(ndev);
+	struct hnae3_handle *h = priv->ae_handle;
+	struct hnae3_knic_private_info *kinfo = &h->kinfo;
+	int i, j, lc, good_cnt;
+	netdev_tx_t tx_ret_val;
+	struct sk_buff *skb;
+	unsigned int size;
+	int ret_val = 0;
+
+	size = HNS3_NIC_LB_TEST_FRAME_SIZE;
+	/* Allocate test skb */
+	skb = alloc_skb(size, GFP_KERNEL);
+	if (!skb)
+		return HNS3_NIC_LB_TEST_NO_MEM_ERR;
+
+	/* Place data into test skb */
+	(void)skb_put(skb, size);
+	skb->dev = ndev;
+	hns3_lp_setup_skb(skb);
+	skb->queue_mapping = HNS3_NIC_LB_TEST_RING_ID;
+	lc = 1;
+	for (j = 0; j < lc; j++) {
+		/* Reset count of good packets */
+		good_cnt = 0;
+		/* Place 64 packets on the transmit queue */
+		for (i = 0; i < HNS3_NIC_LB_TEST_PKT_NUM; i++) {
+			(void)skb_get(skb);
+			tx_ret_val = (netdev_tx_t)hns3_nic_net_xmit_hw(
+							ndev, skb,
+							&tx_ring_data(priv,
+							skb->queue_mapping));
+			if (tx_ret_val == NETDEV_TX_OK) {
+				good_cnt++;
+			} else {
+				dev_err(priv->dev,
+					"hns3_lb_run_test hns3_nic_net_xmit_hw FAILED %d\n",
+					tx_ret_val);
+				break;
+			}
+		}
+		if (good_cnt != HNS3_NIC_LB_TEST_PKT_NUM) {
+			ret_val = HNS3_NIC_LB_TEST_TX_CNT_ERR;
+			dev_err(priv->dev, "mode %d sent fail, cnt=0x%x, budget=0x%x\n",
+				mode, good_cnt,
+				HNS3_NIC_LB_TEST_PKT_NUM);
+			break;
+		}
+
+		/* Allow 100 milliseconds for packets to go from Tx to Rx */
+		msleep(100);
+
+		good_cnt = hns3_lb_check_rx_ring(priv,
+						 kinfo->num_tqps,
+						 kinfo->num_tqps * 2 - 1,
+				HNS3_NIC_LB_TEST_PKT_NUM);
+		if (good_cnt != HNS3_NIC_LB_TEST_PKT_NUM) {
+			ret_val = HNS3_NIC_LB_TEST_RX_CNT_ERR;
+			dev_err(priv->dev, "mode %d recv fail, cnt=0x%x, budget=0x%x\n",
+				mode, good_cnt,
+				HNS3_NIC_LB_TEST_PKT_NUM);
+			break;
+		}
+		hns3_lb_clear_tx_ring(priv,
+				      HNS3_NIC_LB_TEST_RING_ID,
+				      HNS3_NIC_LB_TEST_RING_ID,
+				      HNS3_NIC_LB_TEST_PKT_NUM);
+	}
+
+	/* Free the original skb */
+	kfree_skb(skb);
+
+	return ret_val;
+}
+
+/* hns_nic_self_test - self test
+ * @ndev: net device
+ * @eth_test: test cmd
+ * @data: test result
+ */
+static void hns3_self_test(struct net_device *ndev,
+			   struct ethtool_test *eth_test, u64 *data)
+{
+#define HNS3_SELF_TEST_TPYE_NUM 3
+
+	struct hns3_nic_priv *priv = netdev_priv(ndev);
+	struct hnae3_handle *h = priv->ae_handle;
+	int st_param[HNS3_SELF_TEST_TPYE_NUM][2];
+	bool if_running = netif_running(ndev);
+	int test_index = 0;
+	int i;
+
+	st_param[0][0] = HNAE3_MAC_INTER_LOOP_MAC; /* XGE not supported lb */
+	st_param[0][1] = h->flags & HNAE3_SUPPORT_MAC_LOOPBACK;
+	st_param[1][0] = HNAE3_MAC_INTER_LOOP_SERDES;
+	st_param[1][1] = h->flags & HNAE3_SUPPORT_SERDES_LOOPBACK;
+	st_param[2][0] = HNAE3_MAC_INTER_LOOP_PHY;
+	st_param[2][1] = h->flags & HNAE3_SUPPORT_PHY_LOOPBACK;
+
+	if (eth_test->flags == ETH_TEST_FL_OFFLINE) {
+		set_bit(HNS3_NIC_STATE_TESTING, &priv->state);
+
+		if (if_running)
+			(void)dev_close(ndev);
+
+		for (i = 0; i < HNS3_SELF_TEST_TPYE_NUM; i++) {
+			if (!st_param[i][1])
+				continue;	/* NEXT testing */
+
+			data[test_index] = hns3_lp_up(ndev,
+					(enum hnae3_loop)st_param[i][0]);
+			if (!data[test_index]) {
+				data[test_index] = hns3_lp_run_test(
+					ndev,
+					(enum hnae3_loop)st_param[i][0]);
+				(void)hns3_lp_down(ndev);
+			}
+
+			if (data[test_index])
+				eth_test->flags |= ETH_TEST_FL_FAILED;
+
+			test_index++;
+		}
+
+		clear_bit(HNS3_NIC_STATE_TESTING, &priv->state);
+
+		if (if_running)
+			(void)dev_open(ndev);
+	}
+	(void)msleep_interruptible(4 * 1000);
+}
+
+static int hns3_get_sset_count(struct net_device *netdev, int stringset)
+{
+	struct hns3_nic_priv *priv = netdev_priv(netdev);
+	struct hnae3_handle *h = priv->ae_handle;
+	struct hnae3_ae_ops *ops = h->ae_algo->ops;
+
+	if (!ops->get_sset_count) {
+		netdev_err(netdev, "could not get string set count\n");
+		return -EOPNOTSUPP;
+	}
+
+	switch (stringset) {
+	case ETH_SS_STATS:
+		return (HNS3_NETDEV_STATS_COUNT +
+			(HNS3_TQP_STATS_COUNT * h->kinfo.num_tqps) +
+			ops->get_sset_count(h, stringset));
+
+	case ETH_SS_TEST:
+		return ops->get_sset_count(h, stringset);
+	}
+
+	return 0;
+}
+
+static u8 *hns3_get_strings_netdev(u8 *data)
+{
+	int i;
+
+	for (i = 0; i < HNS3_NETDEV_STATS_COUNT; i++) {
+		memcpy(data, hns3_netdev_stats[i].stats_string,
+		       ETH_GSTRING_LEN);
+		data += ETH_GSTRING_LEN;
+	}
+
+	return data;
+}
+
+static u8 *hns3_get_strings_tqps(struct hnae3_handle *handle, u8 *data)
+{
+	struct hnae3_knic_private_info *kinfo = &handle->kinfo;
+	int i, j;
+
+	/* get strings for Tx */
+	for (i = 0; i < kinfo->num_tqps; i++) {
+		for (j = 0; j < HNS3_TXQ_STATS_COUNT; j++) {
+			u8 gstr[ETH_GSTRING_LEN];
+
+			sprintf(gstr, "rcb_q%d_", i);
+			strcat(gstr, hns3_txq_stats[j].stats_string);
+
+			memcpy(data, gstr, ETH_GSTRING_LEN);
+			data += ETH_GSTRING_LEN;
+		}
+	}
+
+	/* get strings for Rx */
+	for (i = 0; i < kinfo->num_tqps; i++) {
+		for (j = 0; j < HNS3_RXQ_STATS_COUNT; j++) {
+			u8 gstr[ETH_GSTRING_LEN];
+
+			sprintf(gstr, "rcb_q%d_", i);
+			strcat(gstr, hns3_rxq_stats[j].stats_string);
+
+			memcpy(data, gstr, ETH_GSTRING_LEN);
+			data += ETH_GSTRING_LEN;
+		}
+	}
+
+	return data;
+}
+
+static void hns3_get_strings(struct net_device *netdev, u32 stringset, u8 *data)
+{
+	struct hns3_nic_priv *priv = netdev_priv(netdev);
+	struct hnae3_handle *h = priv->ae_handle;
+	struct hnae3_ae_ops *ops = h->ae_algo->ops;
+	char *buff = (char *)data;
+
+	if (!ops->get_strings) {
+		netdev_err(netdev, "could not get strings!\n");
+		return;
+	}
+
+	switch (stringset) {
+	case ETH_SS_STATS:
+		buff = hns3_get_strings_netdev(buff);
+		buff = hns3_get_strings_tqps(h, buff);
+		h->ae_algo->ops->get_strings(h, stringset, (u8 *)buff);
+		break;
+	case ETH_SS_TEST:
+		ops->get_strings(h, stringset, data);
+		break;
+	}
+}
+
+static u64 *hns3_get_stats_netdev(struct net_device *netdev, u64 *data)
+{
+	const struct rtnl_link_stats64 *net_stats;
+	struct rtnl_link_stats64 temp;
+	u8 *stat;
+	int i;
+
+	net_stats = dev_get_stats(netdev, &temp);
+
+	for (i = 0; i < HNS3_NETDEV_STATS_COUNT; i++) {
+		stat = (u8 *)net_stats + hns3_netdev_stats[i].stats_offset;
+		*data++ = *(u64 *)stat;
+	}
+
+	return data;
+}
+
+static u64 *hns3_get_stats_tqps(struct hnae3_handle *handle, u64 *data)
+{
+	struct hns3_nic_priv *nic_priv = (struct hns3_nic_priv *)handle->priv;
+	struct hnae3_knic_private_info *kinfo = &handle->kinfo;
+	struct hns3_enet_ring *ring;
+	u8 *stat;
+	int i;
+
+	/* get stats for Tx */
+	for (i = 0; i < kinfo->num_tqps; i++) {
+		ring = nic_priv->ring_data[i].ring;
+		for (i = 0; i < HNS3_TXQ_STATS_COUNT; i++) {
+			stat = (u8 *)ring + hns3_txq_stats[i].stats_offset;
+			*data++ = *(u64 *)stat;
+		}
+	}
+
+	/* get stats for Rx */
+	for (i = 0; i < kinfo->num_tqps; i++) {
+		ring = nic_priv->ring_data[i + kinfo->num_tqps].ring;
+		for (i = 0; i < HNS3_RXQ_STATS_COUNT; i++) {
+			stat = (u8 *)ring + hns3_rxq_stats[i].stats_offset;
+			*data++ = *(u64 *)stat;
+		}
+	}
+
+	return data;
+}
+
+/* hns3_get_stats - get detail statistics.
+ * @netdev: net device
+ * @stats: statistics info.
+ * @data: statistics data.
+ */
+void hns3_get_stats(struct net_device *netdev, struct ethtool_stats *stats,
+		    u64 *data)
+{
+	struct hns3_nic_priv *priv = netdev_priv(netdev);
+	struct hnae3_handle *h = priv->ae_handle;
+	u64 *p = data;
+
+	if (!h->ae_algo->ops->get_stats || !h->ae_algo->ops->update_stats) {
+		netdev_err(netdev, "could not get any statistics\n");
+		return;
+	}
+
+	h->ae_algo->ops->update_stats(h, &netdev->stats);
+
+	/* get netdev related stats */
+	p = hns3_get_stats_netdev(netdev, p);
+
+	/* get per-queue stats */
+	p = hns3_get_stats_tqps(h, p);
+
+	/* get MAC & other misc hardware stats */
+	h->ae_algo->ops->get_stats(h, p);
+}
+
+static void hns3_get_drvinfo(struct net_device *net_dev,
+			     struct ethtool_drvinfo *drvinfo)
+{
+	struct hns3_nic_priv *priv = netdev_priv(net_dev);
+	struct hnae3_handle *h = priv->ae_handle;
+
+	strncpy(drvinfo->version, HNAE_DRIVER_VERSION,
+		sizeof(drvinfo->version));
+	drvinfo->version[sizeof(drvinfo->version) - 1] = '\0';
+
+	strncpy(drvinfo->driver, HNAE_DRIVER_NAME, sizeof(drvinfo->driver));
+	drvinfo->driver[sizeof(drvinfo->driver) - 1] = '\0';
+
+	strncpy(drvinfo->bus_info, priv->dev->bus->name,
+		sizeof(drvinfo->bus_info));
+	drvinfo->bus_info[ETHTOOL_BUSINFO_LEN - 1] = '\0';
+
+	snprintf(drvinfo->fw_version, sizeof(drvinfo->fw_version), "0x%08x",
+		 priv->ae_handle->ae_algo->ops->get_fw_version(h));
+}
+
+static u32 hns3_get_link(struct net_device *net_dev)
+{
+	struct hns3_nic_priv *priv = netdev_priv(net_dev);
+	struct hnae3_handle *h;
+
+	h = priv->ae_handle;
+
+	if (h->ae_algo && h->ae_algo->ops && h->ae_algo->ops->get_status)
+		return h->ae_algo->ops->get_status(h);
+	else
+		return 0;
+}
+
+static void hns3_get_ringparam(struct net_device *net_dev,
+			       struct ethtool_ringparam *param)
+{
+	struct hns3_nic_priv *priv = netdev_priv(net_dev);
+	int queue_num = priv->ae_handle->kinfo.num_tqps;
+
+	param->tx_max_pending = HNS3_RING_MAX_PENDING;
+	param->rx_max_pending = HNS3_RING_MAX_PENDING;
+
+	param->tx_pending = priv->ring_data[0].ring->desc_num;
+	param->rx_pending = priv->ring_data[queue_num].ring->desc_num;
+}
+
+static void hns3_get_pauseparam(struct net_device *net_dev,
+				struct ethtool_pauseparam *param)
+{
+	struct hns3_nic_priv *priv = netdev_priv(net_dev);
+	struct hnae3_handle *h = priv->ae_handle;
+
+	if (h->ae_algo && h->ae_algo->ops && h->ae_algo->ops->get_pauseparam)
+		h->ae_algo->ops->get_pauseparam(h, &param->autoneg,
+			&param->rx_pause, &param->tx_pause);
+}
+
+static int hns3_get_link_ksettings(struct net_device *net_dev,
+				   struct ethtool_link_ksettings *cmd)
+{
+	struct hns3_nic_priv *priv = netdev_priv(net_dev);
+	struct hnae3_handle *h = priv->ae_handle;
+	u32 supported_caps;
+	u32 advertised_caps;
+	u8 media_type;
+	u8 link_stat;
+	u8 auto_neg;
+	u8 duplex;
+	u32 speed;
+
+	if (!h->ae_algo || !h->ae_algo->ops)
+		return -ESRCH;
+
+	/* 1.auto_neg&speed&duplex from cmd */
+	if (h->ae_algo->ops->get_ksettings_an_result) {
+		h->ae_algo->ops->get_ksettings_an_result(h, &auto_neg,
+							 &speed, &duplex);
+		cmd->base.autoneg = auto_neg;
+		cmd->base.speed = speed;
+		cmd->base.duplex = duplex;
+
+		link_stat = hns3_get_link(net_dev);
+		if (!link_stat) {
+			cmd->base.speed = (u32)SPEED_UNKNOWN;
+			cmd->base.duplex = DUPLEX_UNKNOWN;
+		}
+	}
+
+	/* 2.media_type get from bios parameter block */
+	if (h->ae_algo->ops->get_media_type)
+		h->ae_algo->ops->get_media_type(h, &media_type);
+
+	switch (media_type) {
+	case HNAE3_MEDIA_TYPE_FIBER:
+		cmd->base.port = PORT_FIBRE;
+		supported_caps = HNS3_LM_FIBRE_BIT | HNS3_LM_AUTONEG_BIT |
+			HNS3_LM_PAUSE_BIT | HNS3_LM_1000BASET_FULL_BIT;
+
+		advertised_caps = supported_caps;
+		break;
+	case HNAE3_MEDIA_TYPE_COPPER:
+		cmd->base.port = PORT_TP;
+		supported_caps = HNS3_LM_TP_BIT | HNS3_LM_AUTONEG_BIT |
+			HNS3_LM_PAUSE_BIT | HNS3_LM_1000BASET_FULL_BIT |
+			HNS3_LM_100BASET_FULL_BIT | HNS3_LM_100BASET_HALF_BIT |
+			HNS3_LM_10BASET_FULL_BIT | HNS3_LM_10BASET_HALF_BIT;
+		advertised_caps = supported_caps;
+		break;
+	case HNAE3_MEDIA_TYPE_BACKPLANE:
+		cmd->base.port = PORT_NONE;
+		supported_caps = HNS3_LM_BACKPLANE_BIT | HNS3_LM_PAUSE_BIT |
+			HNS3_LM_AUTONEG_BIT | HNS3_LM_1000BASET_FULL_BIT |
+			HNS3_LM_100BASET_FULL_BIT | HNS3_LM_100BASET_HALF_BIT |
+			HNS3_LM_10BASET_FULL_BIT | HNS3_LM_10BASET_HALF_BIT;
+
+		advertised_caps = supported_caps;
+		break;
+	case HNAE3_MEDIA_TYPE_UNKNOWN:
+	default:
+		cmd->base.port = PORT_OTHER;
+		supported_caps = 0;
+		advertised_caps = 0;
+		break;
+	}
+
+	ethtool_link_ksettings_zero_link_mode(cmd, supported);
+	HNS3_DRV_TO_ETHTOOL_CAPS(supported_caps, cmd, supported)
+
+	ethtool_link_ksettings_zero_link_mode(cmd, advertising);
+	HNS3_DRV_TO_ETHTOOL_CAPS(advertised_caps, cmd, advertising)
+
+	/* 3.mdix_ctrl&mdix get from phy reg */
+	if (h->ae_algo->ops->get_mdix_mode)
+		h->ae_algo->ops->get_mdix_mode(h, &cmd->base.eth_tp_mdix_ctrl,
+			&cmd->base.eth_tp_mdix);
+	/* 4.mdio_support */
+	cmd->base.mdio_support = ETH_MDIO_SUPPORTS_C22;
+
+	return 0;
+}
+
+static u32 hns3_get_rss_key_size(struct net_device *netdev)
+{
+	struct hns3_nic_priv *priv = netdev_priv(netdev);
+	struct hnae3_handle *h = priv->ae_handle;
+
+	if (!h->ae_algo || !h->ae_algo->ops ||
+	    !h->ae_algo->ops->get_rss_key_size)
+		return -EOPNOTSUPP;
+
+	return h->ae_algo->ops->get_rss_key_size(h);
+}
+
+static u32 hns3_get_rss_indir_size(struct net_device *netdev)
+{
+	struct hns3_nic_priv *priv = netdev_priv(netdev);
+	struct hnae3_handle *h = priv->ae_handle;
+
+	if (!h->ae_algo || !h->ae_algo->ops ||
+	    !h->ae_algo->ops->get_rss_indir_size)
+		return -EOPNOTSUPP;
+
+	return h->ae_algo->ops->get_rss_indir_size(h);
+}
+
+static int hns3_get_rss(struct net_device *netdev, u32 *indir, u8 *key,
+			u8 *hfunc)
+{
+	struct hns3_nic_priv *priv = netdev_priv(netdev);
+	struct hnae3_handle *h = priv->ae_handle;
+
+	if (!h->ae_algo || !h->ae_algo->ops || !h->ae_algo->ops->get_rss)
+		return -EOPNOTSUPP;
+
+	return h->ae_algo->ops->get_rss(h, indir, key, hfunc);
+}
+
+static int hns3_set_rss(struct net_device *netdev, const u32 *indir,
+			const u8 *key, const u8 hfunc)
+{
+	struct hns3_nic_priv *priv = netdev_priv(netdev);
+	struct hnae3_handle *h = priv->ae_handle;
+
+	if (!h->ae_algo || !h->ae_algo->ops || !h->ae_algo->ops->set_rss)
+		return -EOPNOTSUPP;
+
+	/* currently we only support Toeplitz hash */
+	if ((hfunc != ETH_RSS_HASH_NO_CHANGE) && (hfunc != ETH_RSS_HASH_TOP)) {
+		netdev_err(netdev,
+			   "hash func not supported (only Toeplitz hash)\n");
+		return -EOPNOTSUPP;
+	}
+	if (!indir) {
+		netdev_err(netdev,
+			   "set rss failed for indir is empty\n");
+		return -EOPNOTSUPP;
+	}
+
+	return h->ae_algo->ops->set_rss(h, indir, key, hfunc);
+}
+
+static int hns3_get_rxnfc(struct net_device *netdev,
+			  struct ethtool_rxnfc *cmd,
+			  u32 *rule_locs)
+{
+	struct hns3_nic_priv *priv = netdev_priv(netdev);
+	struct hnae3_handle *h = priv->ae_handle;
+
+	if (!h->ae_algo || !h->ae_algo->ops || !h->ae_algo->ops->get_tc_size)
+		return -EOPNOTSUPP;
+
+	switch (cmd->cmd) {
+	case ETHTOOL_GRXRINGS:
+		cmd->data = h->ae_algo->ops->get_tc_size(h);
+		break;
+	default:
+		return -EOPNOTSUPP;
+	}
+
+	return 0;
+}
+
+static const struct ethtool_ops hns3_ethtool_ops = {
+	.get_drvinfo = hns3_get_drvinfo,
+	.get_link = hns3_get_link,
+	.get_ringparam = hns3_get_ringparam,
+	.get_pauseparam = hns3_get_pauseparam,
+	.self_test = hns3_self_test,
+	.get_strings = hns3_get_strings,
+	.get_ethtool_stats = hns3_get_stats,
+	.get_sset_count = hns3_get_sset_count,
+	.get_rxnfc = hns3_get_rxnfc,
+	.get_rxfh_key_size = hns3_get_rss_key_size,
+	.get_rxfh_indir_size = hns3_get_rss_indir_size,
+	.get_rxfh = hns3_get_rss,
+	.set_rxfh = hns3_set_rss,
+	.get_link_ksettings = hns3_get_link_ksettings,
+};
+
+void hns3_ethtool_set_ops(struct net_device *ndev)
+{
+	ndev->ethtool_ops = &hns3_ethtool_ops;
+}
-- 
2.7.4