tg3: Disable TSS

It was recently discovered that enabling TSS can lockup the device.
This patch disables the feature until a suitable workaround can be
found.
Signed-off-by: Matt Carlson <mcarlson@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

drivers/net/tg3.c

@@ -8827,16 +8827,9 @@ static bool tg3_enable_msix(struct tg3 *tp)
 		tp->napi[i].irq_vec = msix_ent[i].vector;
 
 	tp->dev->real_num_tx_queues = 1;
-	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_5717 ||
-		    GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5719) {
-			tp->tg3_flags3 |= TG3_FLG3_ENABLE_TSS;
-			tp->dev->real_num_tx_queues = tp->irq_cnt - 1;
-		}
-	}
-
 	return true;
 }