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[TG3]: disallow jumbo TSO on 5780

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Disallow jumbo TSO on 5780 due to hardware restrictions.

Signed-off-by: Michael Chan <mchan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Michael Chan 2005-07-25 12:32:25 -07:00 • committed by David S. Miller
commit ef7f5ec0de
1 changed files with 11 additions and 3 deletions
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12
drivers/net/tg3.c
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@ -3443,10 +3443,18 @@ static inline void tg3_set_mtu(struct net_device *dev, struct tg3 *tp,
{ {
dev->mtu = new_mtu; dev->mtu = new_mtu;
if (new_mtu > ETH_DATA_LEN) if (new_mtu > ETH_DATA_LEN) {
tp->tg3_flags |= TG3_FLAG_JUMBO_RING_ENABLE; 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 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; tp->tg3_flags &= ~TG3_FLAG_JUMBO_RING_ENABLE;
}
} }
static int tg3_change_mtu(struct net_device *dev, int new_mtu) static int tg3_change_mtu(struct net_device *dev, int new_mtu)