Commit 4a50a876 authored by Stephen Hemminger's avatar Stephen Hemminger Committed by Jeff Garzik
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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: default avatarStephen Hemminger <shemminger@linux-foundation.org>
Signed-off-by: default avatarJeff Garzik <jeff@garzik.org>
parent b02a9258

drivers/net/sky2.c

+3 −4
Original line number Diff line number Diff line
@@ -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;