net: ethernet: mediatek: bug fix to disable HW LRO

(1) Modify the register settings for LRO relinquishments
(2) Jump out from the waiting loop while LRO relinquishments are done

Signed-off-by: Nelson Chang <nelson.chang@mediatek.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

drivers/net/ethernet/mediatek/mtk_eth_soc.c

@@ -1374,6 +1374,7 @@ static void mtk_hwlro_rx_uninit(struct mtk_eth *eth)
 			msleep(20);
 			continue;
 		}
+		break;
 	}
 
 	/* invalidate lro rings */

drivers/net/ethernet/mediatek/mtk_eth_soc.h

@@ -102,8 +102,8 @@
 #define MTK_LRO_EN			BIT(0)
 #define MTK_L3_CKS_UPD_EN		BIT(7)
 #define MTK_LRO_ALT_PKT_CNT_MODE	BIT(21)
-#define MTK_LRO_RING_RELINQUISH_REQ	(0x3 << 26)
-#define MTK_LRO_RING_RELINQUISH_DONE	(0x3 << 29)
+#define MTK_LRO_RING_RELINQUISH_REQ	(0x7 << 26)
+#define MTK_LRO_RING_RELINQUISH_DONE	(0x7 << 29)
 
 #define MTK_PDMA_LRO_CTRL_DW1	0x984
 #define MTK_PDMA_LRO_CTRL_DW2	0x988