diff options
| author | Amit Kumar Salecha <amit@netxen.com> | 2009-09-05 17:43:10 +0000 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2009-09-07 01:53:13 -0700 |
| commit | 195c5f9829407857cba86f083caec6302b1fd8e1 (patch) | |
| tree | d208ca059eaa3f6dd0dd4fb23226f84584a341e4 /drivers/net/netxen/netxen_nic_ethtool.c | |
| parent | d0725e4d3ccf603c4fcf3589850cb464c927d42a (diff) | |
netxen: pre calculate register addresses
For registers accessed in fast path (interrupt / softirq)
avoid expensive I/O address translation. These registers
are directly mapped in PCI bar 0 and do not require
any window checks.
Signed-off-by: Amit Kumar Salecha <amit@netxen.com>
Signed-off-by: Dhananjay Phadke <dhananjay@netxen.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.c | 5 |
1 files changed, 2 insertions, 3 deletions
diff --git a/drivers/net/netxen/netxen_nic_ethtool.c b/drivers/net/netxen/netxen_nic_ethtool.c index e376a1c4eb06..d18832ce4b58 100644 --- a/drivers/net/netxen/netxen_nic_ethtool.c +++ b/drivers/net/netxen/netxen_nic_ethtool.c @@ -84,18 +84,17 @@ static void netxen_nic_get_drvinfo(struct net_device *dev, struct ethtool_drvinfo *drvinfo) { struct netxen_adapter *adapter = netdev_priv(dev); - unsigned long flags; u32 fw_major = 0; u32 fw_minor = 0; u32 fw_build = 0; strncpy(drvinfo->driver, netxen_nic_driver_name, 32); strncpy(drvinfo->version, NETXEN_NIC_LINUX_VERSIONID, 32); - write_lock_irqsave(&adapter->adapter_lock, flags); + read_lock(&adapter->adapter_lock); fw_major = NXRD32(adapter, NETXEN_FW_VERSION_MAJOR); fw_minor = NXRD32(adapter, NETXEN_FW_VERSION_MINOR); fw_build = NXRD32(adapter, NETXEN_FW_VERSION_SUB); - write_unlock_irqrestore(&adapter->adapter_lock, flags); + read_unlock(&adapter->adapter_lock); sprintf(drvinfo->fw_version, "%d.%d.%d", fw_major, fw_minor, fw_build); strncpy(drvinfo->bus_info, pci_name(adapter->pdev), 32); |