sky2: disable rx checksum on Yukon XL
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 <shemminger@linux-foundation.org>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
diff --git a/drivers/net/sky2.c b/drivers/net/sky2.c
index a2070db..8c4c743 100644
--- a/drivers/net/sky2.c
+++ b/drivers/net/sky2.c
@@ -1320,15 +1320,11 @@
*/
if (otherdev && netif_running(otherdev) &&
(cap = pci_find_capability(hw->pdev, PCI_CAP_ID_PCIX))) {
- struct sky2_port *osky2 = netdev_priv(otherdev);
u16 cmd;
pci_read_config_word(hw->pdev, cap + PCI_X_CMD, &cmd);
cmd &= ~PCI_X_CMD_MAX_SPLIT;
pci_write_config_word(hw->pdev, cap + PCI_X_CMD, cmd);
-
- sky2->rx_csum = 0;
- osky2->rx_csum = 0;
}
if (netif_msg_ifup(sky2))
@@ -4013,7 +4009,7 @@
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);