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authorStephen Hemminger <shemminger@linux-foundation.org>2007-02-06 10:45:41 -0800
committerJeff Garzik <jeff@garzik.org>2007-02-07 18:50:42 -0500
commit4a50a876ac325a45de1b582571c1248648801b52 (patch)
tree8eb63fa0d5714587231270882b2135d1b59fc6bb
parentb02a92586dca362b0b76ad527b91bd44ce58ece5 (diff)
sky2: TSO support for EC_U
The Yukon EC_U chipset apparently supports TSO but only for non-Jumbo frame sizes because it lacks a Ram buffer. Signed-off-by: Stephen Hemminger <shemminger@linux-foundation.org> Signed-off-by: Jeff Garzik <jeff@garzik.org>
-rw-r--r--drivers/net/sky2.c7
1 files changed, 3 insertions, 4 deletions
diff --git a/drivers/net/sky2.c b/drivers/net/sky2.c
index 5abcf853e98..e97dc299b56 100644
--- a/drivers/net/sky2.c
+++ b/drivers/net/sky2.c
@@ -1895,8 +1895,9 @@ static int sky2_change_mtu(struct net_device *dev, int new_mtu)
if (new_mtu < ETH_ZLEN || new_mtu > ETH_JUMBO_MTU)
return -EINVAL;
+ /* TSO on Yukon Ultra and MTU > 1500 not supported */
if (hw->chip_id == CHIP_ID_YUKON_EC_U && new_mtu > ETH_DATA_LEN)
- return -EINVAL;
+ dev->features &= ~NETIF_F_TSO;
if (!netif_running(dev)) {
dev->mtu = new_mtu;
@@ -3350,11 +3351,9 @@ static __devinit struct net_device *sky2_init_netdev(struct sky2_hw *hw,
sky2->port = port;
- if (hw->chip_id != CHIP_ID_YUKON_EC_U)
- dev->features |= NETIF_F_TSO;
+ dev->features |= NETIF_F_TSO | NETIF_F_IP_CSUM | NETIF_F_SG;
if (highmem)
dev->features |= NETIF_F_HIGHDMA;
- dev->features |= NETIF_F_IP_CSUM | NETIF_F_SG;
#ifdef SKY2_VLAN_TAG_USED
dev->features |= NETIF_F_HW_VLAN_TX | NETIF_F_HW_VLAN_RX;