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authorMatt Carlson <mcarlson@broadcom.com>2010-12-06 08:28:49 +0000
committerDavid S. Miller <davem@davemloft.net>2010-12-06 11:03:46 -0800
commit8fc2f9956127d2b85280c07e69aeb08b9bd85150 (patch)
tree813ad1761b8f0916ad268f755d1d827f4964ad53 /drivers/net
parentca44ac386181ba710a9ab6db900d6c1e5451b366 (diff)
tg3: Raise the jumbo frame BD flag threshold
The current transmit routines set the jumbo frame BD flag too aggressively. This can reduce performance for common cases. This patch raises the jumbo flag threshold to 1518, up from 1500. Signed-off-by: Matt Carlson <mcarlson@broadcom.com> Reviewed-by: Benjamin Li <benli@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net')
-rw-r--r--drivers/net/tg3.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/net/tg3.c b/drivers/net/tg3.c
index afb79db5327e..b8ae5e19ced5 100644
--- a/drivers/net/tg3.c
+++ b/drivers/net/tg3.c
@@ -5761,7 +5761,7 @@ static netdev_tx_t tg3_start_xmit(struct sk_buff *skb,
dma_unmap_addr_set(&tnapi->tx_buffers[entry], mapping, mapping);
if ((tp->tg3_flags3 & TG3_FLG3_USE_JUMBO_BDFLAG) &&
- !mss && skb->len > ETH_DATA_LEN)
+ !mss && skb->len > VLAN_ETH_FRAME_LEN)
base_flags |= TXD_FLAG_JMB_PKT;
tg3_set_txd(tnapi, entry, mapping, len, base_flags,
@@ -5995,7 +5995,7 @@ static netdev_tx_t tg3_start_xmit_dma_bug(struct sk_buff *skb,
#endif
if ((tp->tg3_flags3 & TG3_FLG3_USE_JUMBO_BDFLAG) &&
- !mss && skb->len > ETH_DATA_LEN)
+ !mss && skb->len > VLAN_ETH_FRAME_LEN)
base_flags |= TXD_FLAG_JMB_PKT;
len = skb_headlen(skb);