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qlcnic: turn off lro when rxcsum is disabled.

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o Also dont allow lro to be turn on, if rx csum is disabled

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>
This commit is contained in:
Sucheta Chakraborty 2010-08-17 00:34:25 +00:00 committed by David S. Miller
parent 8dec32cc42
commit 24763d80fb
3 changed files with 25 additions and 1 deletions
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1
drivers/net/qlcnic/qlcnic.h
View file

@ -894,6 +894,7 @@ struct qlcnic_mac_req {
#define QLCNIC_MSI_ENABLED 0x02
#define QLCNIC_MSIX_ENABLED 0x04
#define QLCNIC_LRO_ENABLED 0x08
#define QLCNIC_LRO_DISABLED 0x00
#define QLCNIC_BRIDGE_ENABLED 0X10
#define QLCNIC_DIAG_ENABLED 0x20
#define QLCNIC_ESWITCH_ENABLED 0x40

23
drivers/net/qlcnic/qlcnic_ethtool.c
View file

@ -818,7 +818,21 @@ static u32 qlcnic_get_rx_csum(struct net_device *dev)
static int qlcnic_set_rx_csum(struct net_device *dev, u32 data)
{
struct qlcnic_adapter *adapter = netdev_priv(dev);
if (!!data) {
adapter->rx_csum = !!data;
return 0;
}
if (adapter->flags & QLCNIC_LRO_ENABLED) {
if (qlcnic_config_hw_lro(adapter, QLCNIC_LRO_DISABLED))
return -EIO;
dev->features &= ~NETIF_F_LRO;
qlcnic_send_lro_cleanup(adapter);
}
adapter->rx_csum = !!data;
dev_info(&adapter->pdev->dev, "disabling LRO as rx_csum is off\n");
return 0;
}
@ -1001,6 +1015,15 @@ static int qlcnic_set_flags(struct net_device *netdev, u32 data)
if (!(adapter->capabilities & QLCNIC_FW_CAPABILITY_HW_LRO))
return -EINVAL;
if (!adapter->rx_csum) {
dev_info(&adapter->pdev->dev, "rx csum is off, "
"cannot toggle lro\n");
return -EINVAL;
}
if ((data & ETH_FLAG_LRO) && (adapter->flags & QLCNIC_LRO_ENABLED))
return 0;
if (data & ETH_FLAG_LRO) {
hw_lro = QLCNIC_LRO_ENABLED;
netdev->features |= NETIF_F_LRO;

2
drivers/net/qlcnic/qlcnic_main.c
View file

@ -995,7 +995,7 @@ __qlcnic_up(struct qlcnic_adapter *adapter, struct net_device *netdev)
qlcnic_config_intr_coalesce(adapter);
if (adapter->capabilities & QLCNIC_FW_CAPABILITY_HW_LRO)
if (netdev->features & NETIF_F_LRO)
qlcnic_config_hw_lro(adapter, QLCNIC_LRO_ENABLED);
qlcnic_napi_enable(adapter);