From ef7f5ec0deb2bcdc005f30f6f75f79c65c577cf5 Mon Sep 17 00:00:00 2001 From: Michael Chan Date: Mon, 25 Jul 2005 12:32:25 -0700 Subject: [PATCH] [TG3]: disallow jumbo TSO on 5780 Disallow jumbo TSO on 5780 due to hardware restrictions. Signed-off-by: Michael Chan Signed-off-by: David S. Miller --- drivers/net/tg3.c | 14 +++++++++++--- 1 file changed, 11 insertions(+), 3 deletions(-) diff --git a/drivers/net/tg3.c b/drivers/net/tg3.c index 2b7d99fc257c..04d8b18e2912 100644 --- a/drivers/net/tg3.c +++ b/drivers/net/tg3.c @@ -3443,10 +3443,18 @@ 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; - else + 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) -- 2.30.2