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netxen: enable LRO based on NETIF_F_LRO

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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>
This commit is contained in:
Sucheta Chakraborty 2011-01-02 21:58:44 +00:00 committed by David S. Miller
parent 0cf445ceaf
commit e4baaf7198
4 changed files with 26 additions and 10 deletions
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1
drivers/net/netxen/netxen_nic.h
View File

@ -1132,6 +1132,7 @@ typedef struct {
#define NETXEN_NIC_MSI_ENABLED 0x02 #define NETXEN_NIC_MSI_ENABLED 0x02
#define NETXEN_NIC_MSIX_ENABLED 0x04 #define NETXEN_NIC_MSIX_ENABLED 0x04
#define NETXEN_NIC_LRO_ENABLED 0x08 #define NETXEN_NIC_LRO_ENABLED 0x08
#define NETXEN_NIC_LRO_DISABLED 0x00
#define NETXEN_NIC_BRIDGE_ENABLED 0X10 #define NETXEN_NIC_BRIDGE_ENABLED 0X10
#define NETXEN_NIC_DIAG_ENABLED 0x20 #define NETXEN_NIC_DIAG_ENABLED 0x20
#define NETXEN_IS_MSI_FAMILY(adapter) \ #define NETXEN_IS_MSI_FAMILY(adapter) \

26
drivers/net/netxen/netxen_nic_ethtool.c
View File

@ -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) static int netxen_nic_set_rx_csum(struct net_device *dev, u32 data)
{ {
struct netxen_adapter *adapter = netdev_priv(dev); 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; 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)) if (!(adapter->capabilities & NX_FW_CAPABILITY_HW_LRO))
return -EINVAL; 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) { if (data & ETH_FLAG_LRO) {
hw_lro = NETXEN_NIC_LRO_ENABLED; hw_lro = NETXEN_NIC_LRO_ENABLED;
netdev->features |= NETIF_F_LRO; netdev->features |= NETIF_F_LRO;
} else { } else {
hw_lro = 0; hw_lro = NETXEN_NIC_LRO_DISABLED;
netdev->features &= ~NETIF_F_LRO; netdev->features &= ~NETIF_F_LRO;
} }

5
drivers/net/netxen/netxen_nic_hw.c
View File

@ -809,9 +809,6 @@ int netxen_config_hw_lro(struct netxen_adapter *adapter, int enable)
u64 word; u64 word;
int rv = 0; int rv = 0;
if ((adapter->flags & NETXEN_NIC_LRO_ENABLED) == enable)
return 0;
memset(&req, 0, sizeof(nx_nic_req_t)); memset(&req, 0, sizeof(nx_nic_req_t));
req.qhdr = cpu_to_le64(NX_HOST_REQUEST << 23); req.qhdr = cpu_to_le64(NX_HOST_REQUEST << 23);
@ -827,8 +824,6 @@ int netxen_config_hw_lro(struct netxen_adapter *adapter, int enable)
"configure hw lro request\n"); "configure hw lro request\n");
} }
adapter->flags ^= NETXEN_NIC_LRO_ENABLED;
return rv; return rv;
} }

4
drivers/net/netxen/netxen_nic_main.c
View File

@ -762,8 +762,6 @@ netxen_check_options(struct netxen_adapter *adapter)
if (adapter->fw_version >= NETXEN_VERSION_CODE(4, 0, 222)) if (adapter->fw_version >= NETXEN_VERSION_CODE(4, 0, 222))
adapter->capabilities = NXRD32(adapter, CRB_FW_CAPABILITIES_1); adapter->capabilities = NXRD32(adapter, CRB_FW_CAPABILITIES_1);
adapter->flags &= ~NETXEN_NIC_LRO_ENABLED;
if (adapter->ahw.port_type == NETXEN_NIC_XGBE) { if (adapter->ahw.port_type == NETXEN_NIC_XGBE) {
adapter->num_rxd = DEFAULT_RCV_DESCRIPTORS_10G; adapter->num_rxd = DEFAULT_RCV_DESCRIPTORS_10G;
adapter->num_jumbo_rxd = MAX_JUMBO_RCV_DESCRIPTORS_10G; adapter->num_jumbo_rxd = MAX_JUMBO_RCV_DESCRIPTORS_10G;
@ -990,7 +988,7 @@ __netxen_nic_up(struct netxen_adapter *adapter, struct net_device *netdev)
if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) if (NX_IS_REVISION_P3(adapter->ahw.revision_id))
netxen_config_intr_coalesce(adapter); netxen_config_intr_coalesce(adapter);
if (adapter->capabilities & NX_FW_CAPABILITY_HW_LRO) if (netdev->features & NETIF_F_LRO)
netxen_config_hw_lro(adapter, NETXEN_NIC_LRO_ENABLED); netxen_config_hw_lro(adapter, NETXEN_NIC_LRO_ENABLED);
netxen_napi_enable(adapter); netxen_napi_enable(adapter);