[][Refactor and refine mtk netsys2.0 ethernet driver]

[Description]
Refactor and refine mtk netsys2.0 ethernet driver
1.GMAC2 use dedicated QDMA queue8 to improve performance

[Release-log]
N/A

Change-Id: I1acb66d6dc8dcc0ad22fe56f87b15917de94edd2
Reviewed-on: https://gerrit.mediatek.inc/c/openwrt/feeds/mtk_openwrt_feeds/+/5438152
diff --git a/target/linux/mediatek/files-5.4/drivers/net/ethernet/mediatek/mtk_eth_soc.h b/target/linux/mediatek/files-5.4/drivers/net/ethernet/mediatek/mtk_eth_soc.h
index e09a798..00c5280 100755
--- a/target/linux/mediatek/files-5.4/drivers/net/ethernet/mediatek/mtk_eth_soc.h
+++ b/target/linux/mediatek/files-5.4/drivers/net/ethernet/mediatek/mtk_eth_soc.h
@@ -449,6 +449,8 @@
 #define QID_HIGH_BITS(x)        ((((x) >> 4) & 0x3) << 20)
 #define QID_BITS_V2(x)		(((x) & 0x3f) << 16)
 
+#define MTK_QDMA_GMAC2_QID	8
+
 /* QDMA V2 descriptor txd6 */
 #define TX_DMA_INS_VLAN_V2         BIT(16)