net: libwx: Implement xx_set_features ops

Implement wx_set_features function which to support
ndo_set_features.
Signed-off-by: Mengyuan Lou <mengyuanlou@net-swift.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>

drivers/net/ethernet/wangxun/libwx/wx_lib.c

@@ -2704,4 +2704,24 @@ void wx_get_stats64(struct net_device *netdev,
 }
 EXPORT_SYMBOL(wx_get_stats64);
 
+int wx_set_features(struct net_device *netdev, netdev_features_t features)
+{
+	netdev_features_t changed = netdev->features ^ features;
+	struct wx *wx = netdev_priv(netdev);
+
+	if (changed & NETIF_F_RXHASH)
+		wr32m(wx, WX_RDB_RA_CTL, WX_RDB_RA_CTL_RSS_EN,
+		      WX_RDB_RA_CTL_RSS_EN);
+	else
+		wr32m(wx, WX_RDB_RA_CTL, WX_RDB_RA_CTL_RSS_EN, 0);
+
+	if (changed &
+	    (NETIF_F_HW_VLAN_CTAG_RX |
+	     NETIF_F_HW_VLAN_STAG_RX))
+		wx_set_rx_mode(netdev);
+
+	return 1;
+}
+EXPORT_SYMBOL(wx_set_features);
+
 MODULE_LICENSE("GPL");

drivers/net/ethernet/wangxun/libwx/wx_lib.h

@@ -28,5 +28,6 @@ void wx_free_resources(struct wx *wx);
 int wx_setup_resources(struct wx *wx);
 void wx_get_stats64(struct net_device *netdev,
 		    struct rtnl_link_stats64 *stats);
+int wx_set_features(struct net_device *netdev, netdev_features_t features);
 
 #endif /* _NGBE_LIB_H_ */

drivers/net/ethernet/wangxun/libwx/wx_type.h

@@ -111,6 +111,8 @@
 #define WX_RDB_PL_CFG_L2HDR          BIT(3)
 #define WX_RDB_PL_CFG_TUN_TUNHDR     BIT(4)
 #define WX_RDB_PL_CFG_TUN_OUTL2HDR   BIT(5)
+#define WX_RDB_RA_CTL                0x194F4
+#define WX_RDB_RA_CTL_RSS_EN         BIT(2) /* RSS Enable */
 
 /******************************* PSR Registers *******************************/
 /* psr control */