static int adf_ctl_ioctl_dev_config(struct file *fp, unsigned int cmd,
unsigned long arg)
{
int ret;
struct adf_user_cfg_ctl_data *ctl_data;
struct adf_accel_dev *accel_dev;
ret = adf_ctl_alloc_resources(&ctl_data, arg);
if (ret)
return ret;
accel_dev = adf_devmgr_get_dev_by_id(ctl_data->device_id);
if (!accel_dev) {
ret = -EFAULT;
goto out;
}
if (adf_dev_started(accel_dev)) {
ret = -EFAULT;
goto out;
}
if (adf_copy_key_value_data(accel_dev, ctl_data)) {
ret = -EFAULT;
goto out;
}
set_bit(ADF_STATUS_CONFIGURED, &accel_dev->status);
out:
kfree(ctl_data);
return ret;
}
static int adf_ctl_ioctl_dev_stop(struct file *fp, unsigned int cmd,
unsigned long arg)
{
int ret;
struct adf_user_cfg_ctl_data *ctl_data;
ret = adf_ctl_alloc_resources(&ctl_data, arg);
if (ret)
return ret;
if (adf_devmgr_verify_id(ctl_data->device_id)) {
pr_err("QAT: Device %d not found\n", ctl_data->device_id);
ret = -ENODEV;
goto out;
}
ret = adf_ctl_is_device_in_use(ctl_data->device_id);
if (ret)
goto out;
if (ctl_data->device_id == ADF_CFG_ALL_DEVICES)
pr_info("QAT: Stopping all acceleration devices.\n");
else
pr_info("QAT: Stopping acceleration device qat_dev%d.\n",
ctl_data->device_id);
ret = adf_ctl_stop_devices(ctl_data->device_id);
if (ret)
pr_err("QAT: failed to stop device.\n");
out:
kfree(ctl_data);
return ret;
}
static int adf_ctl_ioctl_dev_start(struct file *fp, unsigned int cmd,
unsigned long arg)
{
int ret;
struct adf_user_cfg_ctl_data *ctl_data;
struct adf_accel_dev *accel_dev;
ret = adf_ctl_alloc_resources(&ctl_data, arg);
if (ret)
return ret;
accel_dev = adf_devmgr_get_dev_by_id(ctl_data->device_id);
if (!accel_dev) {
pr_err("QAT: Device %d not found\n", ctl_data->device_id);
ret = -ENODEV;
goto out;
}
if (!adf_dev_started(accel_dev)) {
pr_info("QAT: Starting acceleration device qat_dev%d.\n",
ctl_data->device_id);
ret = adf_dev_start(accel_dev);
} else {
pr_info("QAT: Acceleration device qat_dev%d already started.\n",
ctl_data->device_id);
}
if (ret) {
pr_err("QAT: Failed to start qat_dev%d\n", ctl_data->device_id);
adf_dev_stop(accel_dev);
}
out:
kfree(ctl_data);
return ret;
}
