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netxen_nic_locked_write_reg(adapter, NETXEN_NIU_XGE_UNDERSIZE_FRAME_ERR,
&data);
netxen_nic_pci_change_crbwindow(adapter, 1);
netxen_nic_clear_stats(adapter);
return 0;
}
int
netxen_nic_do_ioctl(struct netxen_adapter *adapter, void *u_data,
struct netxen_port *port)
{
struct netxen_nic_ioctl_data data;
struct netxen_nic_ioctl_data *up_data;
int retval = 0;
struct netxen_statistics netxen_stats;
up_data = (void *)u_data;
DPRINTK(INFO, "doing ioctl for %p\n", adapter);
if (copy_from_user(&data, (void __user *)up_data, sizeof(data))) {
/* evil user tried to crash the kernel */
DPRINTK(ERR, "bad copy from userland: %d\n", (int)sizeof(data));
retval = -EFAULT;
goto error_out;
}
/* Shouldn't access beyond legal limits of "char u[64];" member */
if (!data.ptr && (data.size > sizeof(data.u))) {
/* evil user tried to crash the kernel */
DPRINTK(ERR, "bad size: %d\n", data.size);
retval = -EFAULT;
goto error_out;
}
switch (data.cmd) {
case netxen_nic_cmd_pci_read:
if ((retval = netxen_nic_hw_read_wx(adapter, data.off,
&(data.u), data.size)))
goto error_out;
if (copy_to_user
((void __user *)&(up_data->u), &(data.u), data.size)) {
DPRINTK(ERR, "bad copy to userland: %d\n",
(int)sizeof(data));
retval = -EFAULT;
goto error_out;
}
data.rv = 0;
break;
case netxen_nic_cmd_pci_write:
data.rv = netxen_nic_hw_write_wx(adapter, data.off, &(data.u),
data.size);
break;
case netxen_nic_cmd_pci_config_read:
switch (data.size) {
case 1:
data.rv = pci_read_config_byte(adapter->ahw.pdev,
data.off,
(char *)&(data.u));
break;
case 2:
data.rv = pci_read_config_word(adapter->ahw.pdev,
data.off,
(short *)&(data.u));
break;
case 4:
data.rv = pci_read_config_dword(adapter->ahw.pdev,
data.off,
(u32 *) & (data.u));
break;
}
if (copy_to_user
((void __user *)&(up_data->u), &(data.u), data.size)) {
DPRINTK(ERR, "bad copy to userland: %d\n",
(int)sizeof(data));
retval = -EFAULT;
goto error_out;
}
break;
case netxen_nic_cmd_pci_config_write:
switch (data.size) {
case 1:
data.rv = pci_write_config_byte(adapter->ahw.pdev,
data.off,
*(char *)&(data.u));
break;
case 2:
data.rv = pci_write_config_word(adapter->ahw.pdev,
data.off,
*(short *)&(data.u));
break;
case 4:
data.rv = pci_write_config_dword(adapter->ahw.pdev,
data.off,
*(u32 *) & (data.u));
break;
}
break;
case netxen_nic_cmd_get_stats:
data.rv =
netxen_nic_fill_statistics(adapter, port, &netxen_stats);
if (copy_to_user
((void __user *)(up_data->ptr), (void *)&netxen_stats,
sizeof(struct netxen_statistics))) {
DPRINTK(ERR, "bad copy to userland: %d\n",
(int)sizeof(netxen_stats));
retval = -EFAULT;
goto error_out;
}
up_data->rv = data.rv;
break;
case netxen_nic_cmd_clear_stats:
data.rv = netxen_nic_clear_statistics(adapter, port);
up_data->rv = data.rv;
break;
case netxen_nic_cmd_get_version:
if (copy_to_user
((void __user *)&(up_data->u), NETXEN_NIC_LINUX_VERSIONID,
sizeof(NETXEN_NIC_LINUX_VERSIONID))) {
DPRINTK(ERR, "bad copy to userland: %d\n",
(int)sizeof(data));
retval = -EFAULT;
goto error_out;
}
break;
default:
DPRINTK(INFO, "bad command %d for %p\n", data.cmd, adapter);
retval = -EOPNOTSUPP;
goto error_out;
}
put_user(data.rv, (u16 __user *) (&(up_data->rv)));
DPRINTK(INFO, "done ioctl for %p well.\n", adapter);
error_out:
return retval;
}