tg3: Reenable TSS for 5719

All TSS bugs have been fixed in the 5719.  This patch reenables the
feature.

Signed-off-by: Matt Carlson <mcarlson@broadcom.com>
Reviewed-by: Michael Chan <mchan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

drivers/net/tg3.c

@@ -9037,8 +9037,14 @@ static bool tg3_enable_msix(struct tg3 *tp)
 		pci_disable_msix(tp->pdev);
 		return false;
 	}
-	if (tp->irq_cnt > 1)
+
+	if (tp->irq_cnt > 1) {
 		tp->tg3_flags3 |= TG3_FLG3_ENABLE_RSS;
+		if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5719) {
+			tp->tg3_flags3 |= TG3_FLG3_ENABLE_TSS;
+			netif_set_real_num_tx_queues(tp->dev, tp->irq_cnt - 1);
+		}
+	}
 
 	return true;
 }