Commit ef7f5ec0 authored by Michael Chan's avatar Michael Chan Committed by David S. Miller
Browse files

[TG3]: disallow jumbo TSO on 5780 



Disallow jumbo TSO on 5780 due to hardware restrictions.

Signed-off-by: default avatarMichael Chan <mchan@broadcom.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent fdfec172

drivers/net/tg3.c

+11 −3
Original line number Diff line number Diff line
@@ -3443,11 +3443,19 @@ static inline void tg3_set_mtu(struct net_device *dev, struct tg3 *tp, 
{

	dev->mtu = new_mtu;



	if (new_mtu > ETH_DATA_LEN)

		tp->tg3_flags |= TG3_FLAG_JUMBO_RING_ENABLE;

	if (new_mtu > ETH_DATA_LEN) {

		if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5780) {

			tp->tg3_flags2 &= ~TG3_FLG2_TSO_CAPABLE;

			ethtool_op_set_tso(dev, 0);

		}

		else

			tp->tg3_flags |= TG3_FLAG_JUMBO_RING_ENABLE;

	} else {

		if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5780)

			tp->tg3_flags2 |= TG3_FLG2_TSO_CAPABLE;

		tp->tg3_flags &= ~TG3_FLAG_JUMBO_RING_ENABLE;

	}

}



static int tg3_change_mtu(struct net_device *dev, int new_mtu)

{