net: ngbe: add ethtool stats support

Support to show ethtool statistics.
Signed-off-by: Jiawen Wu <jiawenwu@trustnetic.com>
Link: https://lore.kernel.org/r/20231011091906.70486-4-jiawenwu@trustnetic.comSigned-off-by: Jakub Kicinski <kuba@kernel.org>

drivers/net/ethernet/wangxun/ngbe/ngbe_ethtool.c

@@ -49,6 +49,11 @@ static const struct ethtool_ops ngbe_ethtool_ops = {
 	.nway_reset		= phy_ethtool_nway_reset,
 	.get_wol		= ngbe_get_wol,
 	.set_wol		= ngbe_set_wol,
+	.get_sset_count		= wx_get_sset_count,
+	.get_strings		= wx_get_strings,
+	.get_ethtool_stats	= wx_get_ethtool_stats,
+	.get_eth_mac_stats	= wx_get_mac_stats,
+	.get_pause_stats	= wx_get_pause_stats,
 };
 
 void ngbe_set_ethtool_ops(struct net_device *netdev)

drivers/net/ethernet/wangxun/ngbe/ngbe_hw.c

@@ -85,6 +85,8 @@ int ngbe_reset_hw(struct wx *wx)
 	}
 	ngbe_reset_misc(wx);
 
+	wx_clear_hw_cntrs(wx);
+
 	/* Store the permanent mac address */
 	wx_get_mac_addr(wx, wx->mac.perm_addr);
 

drivers/net/ethernet/wangxun/ngbe/ngbe_main.c

@@ -332,6 +332,8 @@ static void ngbe_disable_device(struct wx *wx)
 
 		wr32(wx, WX_PX_TR_CFG(reg_idx), WX_PX_TR_CFG_SWFLSH);
 	}
+
+	wx_update_stats(wx);
 }
 
 static void ngbe_down(struct wx *wx)