stmmac: intel: set TSO/TBS TX Queues default settings

TSO and TBS cannot coexist, for now we set Intel mGbE controller to use
below TX Queue mapping: TxQ0 uses TSO and the rest of TXQs supports TBS.
Signed-off-by: NOng Boon Leong <boon.leong.ong@intel.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

drivers/net/ethernet/stmicro/stmmac/dwmac-intel.c

@@ -447,6 +447,9 @@ static int intel_mgbe_common_data(struct pci_dev *pdev,
 
 		/* Disable Priority config by default */
 		plat->tx_queues_cfg[i].use_prio = false;
+		/* Default TX Q0 to use TSO and rest TXQ for TBS */
+		if (i > 0)
+			plat->tx_queues_cfg[i].tbs_en = 1;
 	}
 
 	/* FIFO size is 4096 bytes for 1 tx/rx queue */