From e62eb48fc190c23187e6f00b211439ddec940e2e Mon Sep 17 00:00:00 2001 From: Stephen Hemminger Date: Wed, 26 Dec 2007 09:59:26 -0800 Subject: [PATCH] sky2: disable rx checksum on Yukon XL Backport of 8b31cfbcd1b54362ef06c85beb40e65a349169a2 The Marvell Yukon XL chipset appears to have a hardware glitch where it will repeat the checksum of the last packet. Of course, this is timing sensitive and only happens sometimes... More info: http://bugzilla.kernel.org/show_bug.cgi?id=9381 As a workaround just disable hardware checksumming by default on this chip version. The earlier workaround for PCIX, dual port was also on Yukon XL so don't need to disable checksumming there. Signed-off-by: Stephen Hemminger Signed-off-by: Greg Kroah-Hartman --- drivers/net/sky2.c | 6 +----- 1 file changed, 1 insertion(+), 5 deletions(-) diff --git a/drivers/net/sky2.c b/drivers/net/sky2.c index 257507793a3c..a011be017ee0 100644 --- a/drivers/net/sky2.c +++ b/drivers/net/sky2.c @@ -1307,15 +1307,11 @@ static int sky2_up(struct net_device *dev) */ if (otherdev && netif_running(otherdev) && (cap = pci_find_capability(hw->pdev, PCI_CAP_ID_PCIX))) { - struct sky2_port *osky2 = netdev_priv(otherdev); u16 cmd; cmd = sky2_pci_read16(hw, cap + PCI_X_CMD); cmd &= ~PCI_X_CMD_MAX_SPLIT; sky2_pci_write16(hw, cap + PCI_X_CMD, cmd); - - sky2->rx_csum = 0; - osky2->rx_csum = 0; } if (netif_msg_ifup(sky2)) @@ -4017,7 +4013,7 @@ static __devinit struct net_device *sky2_init_netdev(struct sky2_hw *hw, sky2->duplex = -1; sky2->speed = -1; sky2->advertising = sky2_supported_modes(hw); - sky2->rx_csum = 1; + sky2->rx_csum = (hw->chip_id != CHIP_ID_YUKON_XL); sky2->wol = wol; spin_lock_init(&sky2->phy_lock); -- 2.39.5