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 --- drivers/net/sky2.c | 7 +++---- 1 file changed, 3 insertions(+), 4 deletions(-) --- sky2-dev.orig/drivers/net/sky2.c 2007-02-06 10:44:19.000000000 -0800 +++ sky2-dev/drivers/net/sky2.c 2007-02-06 10:44:21.000000000 -0800 @@ -1895,8 +1895,9 @@ 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 @@ 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; -- Stephen Hemminger - To unsubscribe from this list: send the line "unsubscribe netdev" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html