static ssize_t show_gw_bwidth(struct kobject *kobj, struct attribute *attr,
char *buff)
{
struct bat_priv *bat_priv = kobj_to_batpriv(kobj);
int down, up;
int gw_bandwidth = atomic_read(&bat_priv->gw_bandwidth);
gw_bandwidth_to_kbit(gw_bandwidth, &down, &up);
return sprintf(buff, "%i%s/%i%s\n",
(down > 2048 ? down / 1024 : down),
(down > 2048 ? "MBit" : "KBit"),
(up > 2048 ? up / 1024 : up),
(up > 2048 ? "MBit" : "KBit"));
}
ssize_t gw_bandwidth_set(struct net_device *net_dev, char *buff, size_t count)
{
struct bat_priv *bat_priv = netdev_priv(net_dev);
long gw_bandwidth_tmp = 0, up = 0, down = 0;
bool ret;
ret = parse_gw_bandwidth(net_dev, buff, &up, &down);
if (!ret)
goto end;
if ((!down) || (down < 256))
down = 2000;
if (!up)
up = down / 5;
kbit_to_gw_bandwidth(down, up, &gw_bandwidth_tmp);
/**
* the gw bandwidth we guessed above might not match the given
* speeds, hence we need to calculate it back to show the number
* that is going to be propagated
**/
gw_bandwidth_to_kbit((uint8_t)gw_bandwidth_tmp,
(int *)&down, (int *)&up);
gw_deselect(bat_priv);
bat_info(net_dev, "Changing gateway bandwidth from: '%i' to: '%ld' "
"(propagating: %ld%s/%ld%s)\n",
atomic_read(&bat_priv->gw_bandwidth), gw_bandwidth_tmp,
(down > 2048 ? down / 1024 : down),
(down > 2048 ? "MBit" : "KBit"),
(up > 2048 ? up / 1024 : up),
(up > 2048 ? "MBit" : "KBit"));
atomic_set(&bat_priv->gw_bandwidth, gw_bandwidth_tmp);
end:
return count;
}
