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authorSucheta Chakraborty <sucheta.chakraborty@qlogic.com>2011-01-02 21:58:44 +0000
committerDavid S. Miller <davem@davemloft.net>2011-01-03 11:56:18 -0800
commite4baaf719807ffc87c6321f3914b93dd512b64c4 (patch)
tree5359b43fa0ec3aa362cd7bb1c48c26d044d2510a /drivers/net/netxen/netxen_nic_ethtool.c
parent0cf445ceaf43be31c5fc70b0e2d5fdccb291c925 (diff)
netxen: enable LRO based on NETIF_F_LRO
o Enable/disable LRO in device based on NETIF_F_LRO flag, instead of using driver private flag. o Disable LRO, if rx csum offloading is off. David Miller, You should use netdev_info() instead of dev_info(). Signed-off-by: Sucheta Chakraborty <sucheta.chakraborty@qlogic.com> Signed-off-by: Amit Kumar Salecha <amit.salecha@qlogic.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/netxen/netxen_nic_ethtool.c')
-rw-r--r--drivers/net/netxen/netxen_nic_ethtool.c26
1 files changed, 24 insertions, 2 deletions
diff --git a/drivers/net/netxen/netxen_nic_ethtool.c b/drivers/net/netxen/netxen_nic_ethtool.c
index b30de24f4a52..587498e140bb 100644
--- a/drivers/net/netxen/netxen_nic_ethtool.c
+++ b/drivers/net/netxen/netxen_nic_ethtool.c
@@ -720,7 +720,21 @@ static u32 netxen_nic_get_rx_csum(struct net_device *dev)
static int netxen_nic_set_rx_csum(struct net_device *dev, u32 data)
{
struct netxen_adapter *adapter = netdev_priv(dev);
- adapter->rx_csum = !!data;
+
+ if (data) {
+ adapter->rx_csum = data;
+ return 0;
+ }
+
+ if (dev->features & NETIF_F_LRO) {
+ if (netxen_config_hw_lro(adapter, NETXEN_NIC_LRO_DISABLED))
+ return -EIO;
+
+ dev->features &= ~NETIF_F_LRO;
+ netxen_send_lro_cleanup(adapter);
+ netdev_info(dev, "disabling LRO as rx_csum is off\n");
+ }
+ adapter->rx_csum = data;
return 0;
}
@@ -893,11 +907,19 @@ static int netxen_nic_set_flags(struct net_device *netdev, u32 data)
if (!(adapter->capabilities & NX_FW_CAPABILITY_HW_LRO))
return -EINVAL;
+ if (!adapter->rx_csum) {
+ netdev_info(netdev, "rx csum is off, cannot toggle LRO\n");
+ return -EINVAL;
+ }
+
+ if (!!(data & ETH_FLAG_LRO) == !!(netdev->features & NETIF_F_LRO))
+ return 0;
+
if (data & ETH_FLAG_LRO) {
hw_lro = NETXEN_NIC_LRO_ENABLED;
netdev->features |= NETIF_F_LRO;
} else {
- hw_lro = 0;
+ hw_lro = NETXEN_NIC_LRO_DISABLED;
netdev->features &= ~NETIF_F_LRO;
}