Implement the .ndo_open() .ndo_stop() .ndo_set_mac_address()
.ndo_change_mtu functions() and ndo.get_stats64()
And .ndo_validate_addr calls the eth_validate_addr function directly

Signed-off-by: Jijie Shao <shaojijie@huawei.com>
---
ChangeLog:
v8 -> v9:
  - Remove HBG_NIC_STATE_OPEN in ndo.open() and ndo.stop(),
    suggested by Kalesh and Andrew.
  - Use netif_running() instead of hbg_nic_is_open() in ndo.change_mtu(),
    suggested by Kalesh and Andrew
  v8: https://lore.kernel.org/all/20240909023141.3234567-1-shaojijie@huawei.com/ (local)
v6 -> v7:
  - Add implement ndo.get_stats64(), suggested by Paolo.
  v6: https://lore.kernel.org/all/20240830121604.2250904-6-shaojijie@huawei.com/ (local)
v5 -> v6:
  - Delete netif_carrier_off() in .ndo_open() and .ndo_stop(),
    suggested by Jakub and Andrew.
 v5: https://lore.kernel.org/all/20240827131455.2919051-1-shaojijie@huawei.com/ (local)
v3 -> v4:
  - Delete INITED_STATE in priv, suggested by Andrew.
  - Delete unnecessary defensive code in hbg_phy_start()
    and hbg_phy_stop(), suggested by Andrew.
  v3: https://lore.kernel.org/all/20240822093334.1687011-1-shaojijie@huawei.com/ (local)
RFC v1 -> RFC v2:
  - Delete validation for mtu in hbg_net_change_mtu(), suggested by Andrew.
  - Delete validation for mac address in hbg_net_set_mac_address(),
    suggested by Andrew.
  - Add a patch to add is_valid_ether_addr check in dev_set_mac_address,
    suggested by Andrew.
  RFC v1: https://lore.kernel.org/all/20240731094245.1967834-1-shaojijie@huawei.com/ (local)
---
 .../net/ethernet/hisilicon/hibmcge/hbg_hw.c   | 39 ++++++++
 .../net/ethernet/hisilicon/hibmcge/hbg_hw.h   |  3 +
 .../net/ethernet/hisilicon/hibmcge/hbg_main.c | 97 +++++++++++++++++++
 .../net/ethernet/hisilicon/hibmcge/hbg_reg.h  | 11 ++-
 4 files changed, 149 insertions(+), 1 deletion(-)

diff --git a/drivers/net/ethernet/hisilicon/hibmcge/hbg_hw.c b/drivers/net/ethernet/hisilicon/hibmcge/hbg_hw.c
index 8e971e9f62a0..97fee714155a 100644
--- a/drivers/net/ethernet/hisilicon/hibmcge/hbg_hw.c
+++ b/drivers/net/ethernet/hisilicon/hibmcge/hbg_hw.c

@@ -15,6 +15,7 @@
  * ctrl means packet description, data means skb packet data
  */
 #define HBG_ENDIAN_CTRL_LE_DATA_BE	0x0
+#define HBG_PCU_FRAME_LEN_PLUS 4
 
 static bool hbg_hw_spec_is_valid(struct hbg_priv *priv)
 {

@@ -129,6 +130,44 @@ void hbg_hw_irq_enable(struct hbg_priv *priv, u32 mask, bool enable)
 	hbg_reg_write(priv, HBG_REG_CF_INTRPT_MSK_ADDR, value);
 }
 
+void hbg_hw_set_uc_addr(struct hbg_priv *priv, u64 mac_addr)
+{
+	hbg_reg_write64(priv, HBG_REG_STATION_ADDR_LOW_2_ADDR, mac_addr);
+}
+

@@ -88,6 +181,10 @@ static int hbg_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
 	if (ret)
 		return ret;
 
+	netdev->max_mtu = priv->dev_specs.max_mtu;
+	netdev->min_mtu = priv->dev_specs.min_mtu;
+	hbg_change_mtu(priv, HBG_DEFAULT_MTU_SIZE);